By Dr. Mercola

Research has shown that many pesticides are neurotoxic and can cause disruptions to your neurological system and your brain. The reason why neurotoxins still enjoy widespread use on our food supply is really more about the bottom line for farming operations than it is about the science of human health.

Research has clearly and consistently linked pesticide exposure to Parkinson’s disease. The Environmental Protection Agency (EPA) also considers 30 percent of insecticides to be carcinogenic.

All of these toxic chemicals are permitted on farms growing conventional and genetically engineered crops, and a large number of them can end up on your plate when you purchase conventionally-grown fruits and vegetables and/or processed foods.

But pesticides also have a dramatic impact on the health of our ecosystem. Neonicotinoids, such as Imidacloprid and Clothianidin, kill insects by attacking their nervous systems. These are known to get into pollen and nectar, and can damage beneficial insects such as bees.

These toxic chemicals have been implicated as one of the primary culprits in the mass die-offs of bees, and have subsequently been banned in some countries. The United States, however, is not among these countries...

But the effects of neonicotinoids do not end there. According to recent research by the American Bird Conservancy (ABC), the use of neonicotinoids in seed treatments is also responsible for the death of birds, terrestrial and aquatic invertebrates and other wildlife.

Ecosystem Threatened by ‘Gross Underestimate’ of Toxicity of Neonicotinoids

Nicotine-related compounds called nicotinoids were initially introduced as a new form of pesticide in the 1990s, as widespread pest resistance rendered many older pesticides useless. Many seeds are now “pre-treated” with neonicotinoids, which are water-soluble and break down slowly in the environment.

Today, they are the most widely-used pesticides in the world. In fact, you’d be hard-pressed to find a pesticide that does not contain at least one neonicotinoid insecticide. In California alone, there are nearly 300 registered neonicotinoid products available.

The American Bird Conservancy (ABC), one of the leading bird conservation organizations in the US, is now calling for a ban on the use of neonicotinoids as seed treatments, and wants all pending applications for neonicotinoid products to be suspended pending an independent review of the products’ effects on birds, terrestrial and aquatic invertebrates, and other wildlife.

As reported by the American Bird Conservancy1:

“It is clear that these chemicals have the potential to affect entire food chains. The environmental persistence of the neonicotinoids, their propensity for runoff and for groundwater infiltration, and their cumulative and largely irreversible mode of action in invertebrates raise significant environmental concerns...”

ABC commissioned the world renowned environmental toxicologist Dr. Pierre Mineau to conduct the research, which resulted in a 100-page report2 titled The Impact of the Nation’s Most Widely Used Insecticides on Birds. Mineau’s report reviews 200 studies on neonicotinoids, including industry research obtained through the US Freedom of Information Act.

The report concludes that neonicotinoids “are lethal to birds and to the aquatic systems on which they depend.” Even more disturbing, contamination levels in both surface and ground water around the world are already beyond the threshold found to kill many aquatic invertebrates. According to this shocking toxicology assessment:

  • A single kernel of corn treated with this type of pesticide can kill a songbird
  • A single grain of wheat or canola treated with the neonicotinoids Imidacloprid can be fatal to a bird
  • As little as 1/10th of a neonicotinoid-coated corn seed per day during egg-laying season can affect a bird’s reproductive capability

EPA Accused of Failing to Adequately Assess Environmental Risks

Disturbingly, the US Environmental Protection Agency (EPA) has not adequately assessed the toxicity of neonicotinoids. Part of the problem, according to the featured report, is that the EPA is “using scientifically unsound, outdated methodology that has more to do with a game of chance than with a rigorous scientific process.” This has led the agency to grossly underestimate the toxicity of these chemicals. Furthermore3:

“The report also charges that there is no readily available biomarker for neonicotinoids as there is for cholinesterase inhibitors such as the organophosphorous pesticides. ‘It is astonishing that EPA would allow a pesticide to be used in hundreds of products without ever requiring the registrant to develop the tools needed to diagnose poisoned wildlife. It would be relatively simple to create a binding assay for the neural receptor which is affected by this class of insecticides,’ said Dr. Mineau.”

Dr. Mineau urges the EPA to require pesticide registrants to also provide the diagnostic tools necessary to diagnose cases of wildlife poisonings. So far, neonicotinoids have garnered the most attention and criticism for their role in bee die-offs—a worldwide phenomenon that took off once these newer pesticides became widely used. As stated by ABC4:

“The serious risk to bees should not be understated, as one-third of the US diet depends on these insect pollinators. The ABC assessment makes clear, however, that the potential environmental impacts of neonicotinoids go well beyond bees.”

Link Between Neonicotinoids and Bee Die-Off is ‘Crystal Clear,’ Lawsuit Maintains

A general consensus among beekeepers is that the bee die-offs are most definitely related to toxic chemicals, and neonicotinoids in particular. The disappearance of bee colonies began accelerating in the United States shortly after the EPA allowed these new insecticides on the market in the mid-2000s. In May, beekeepers and environmental groups filed a lawsuit against the agency over its failure to protect bees from these toxic pesticides.

Meanwhile, France has banned Imidacloprid for use on corn and sunflowers after reporting large losses of bees after exposure to it. They also rejected Bayer´s application for Clothianidin, and other countries, such as Italy, have banned certain neonicotinoids as well.

Neonicotinoids are used on most of American crops, especially corn. As mentioned earlier, these chemicals are typically applied to seeds before planting, allowing the pesticide to be taken up through the plant’s vascular system as it grows. As a result, the chemical is expressed in the pollen and nectar of the plant, and hence the danger to bees and other pollinating insects... Needless to say, since the chemical is taken up systemically through the plant, it could also pose potential health risks to anyone eating the plant since it cannot be rinsed off.

Neonicotinoids affect insects' central nervous systems in ways that are cumulative and irreversible. Even minute amounts can have profound effects over time. One of the observed effects of these insecticides is weakening of the bee's immune system. Forager bees bring pesticide-laden pollen back to the hive, where it's consumed by all of the bees. Six months later, their immune systems fail, and they fall prey to secondary, seemingly "natural" bee infections, such as parasites, mites, viruses, fungi and bacteria.

The EPA5 acknowledges that “pesticide poisoning” may be one factor leading to colony collapse disorder, yet they have been slow to act to protect bees from this threat. The current lawsuit may help spur them toward more urgent action, which is desperately needed as the food supply hangs in the balance.

In March, the EPA sent Jim Jones, overseer of the Office of Chemical Safety and Pollution Prevention, to talk to California almond growers and beekeepers, as mass die-offs of bees were seriously threatening this year’s almond crop. But although beekeepers said Jones got the message that bees are in serious trouble, they were dismayed by the fact that he seemed more interested in finding new places for bees to forage rather than addressing the issue of toxic pesticides...

As usual, at the core of the problem is big industry, which is blinded by greed and enabled by a corrupt governmental system that permits the profit-driven sacrifice of our environment. Unfortunately, this motivation reflects an extreme shortsightedness about the long-term survival of the human race, as well as of our planet. Clearly, if the goal of pesticides is to increase food yield to more easily feed 7 billion human beings, this goal falls flat on its face if it leads to the collapse of our food chain.

Pesticides Again Tied to Parkinson's Disease

A recent meta-analysis published in the journal Neurology6, examined data from 104 studies published between 1975 and 2011, in search for a potential link between pesticides and Parkinson's disease. As many previous studies, it found one... Parkinson’s disease is a neurological disorder in which neurons in a region within your brain responsible for normal movement begin to die, causing the telltale shaking and rigidity associated with the disease. There’s currently no known cure, which makes preventing the disease all the more important. Mounting evidence suggests avoiding pesticides is an important part of prevention. As reported by Reuters7:

“In 2011, a study of US farm workers from National Institutes of Health found some pesticides that are known to interfere with cell function were linked to the development of Parkinson's disease. Another study that was published in 2012 also reported that people with Parkinson's disease were more likely to report exposure to pesticides, compared to people without the condition.”

In this latest analysis, exposure to pesticides was linked to a 58 percent increased risk of developing Parkinson’s. Some pesticides were clearly worse than others. Paraquat (a non-selective plant killer) and two fungicides, maneb and mancozeb, were found to double your risk. One of the study’s authors told Reuters that8:

“[T]he study's results suggest that people should avoid contact with pesticides or - at least - wear proper protection when handling the chemicals. The use of protective equipment and compliance with suggested, or even recommended, preventive practices should be emphasized in high-risk working categories (such as farming)."

How Modern Farming Methods Have Led to Toxic Food Supplies

Chlorinated hydrocarbons, or organochlorines like DDT were developed after World War II and remained widely used in agriculture for pest and weed control until Rachel Carson's book Silent Spring was published in 1962. That book is credited with beginning the modern environmental movement, and through the involvement of scientists and ordinary concerned citizens many of the organochlorines were later phased out of use, according to the conditions of the Stockholm Convention of 19819. Since then, these chemicals have been replaced by a slew of new herbicides, pesticides and fungicides designed to kill the things that threaten a farmer's bottom line.

These include not just neonicotinoids, but also glyphosate—the active ingredient in Monsanto’s herbicide Roundup.

Roundup was designed to be used in conjunction with Monsanto's genetically engineered “Roundup Ready” seeds, which in turn have been genetically altered to withstand otherwise lethal doses of the chemical. This way, only the non-modified weeds die while the crop survives the indiscriminate sprayings. In theory, genetically engineered seeds were supposed to reduce the use of agricultural chemicals. It didn’t work out that way. Today, resistant “superweeds” are taking over large swaths of farm land, and in an effort to stay on top of increasing weed resistance, farmers using Monsanto’s genetically engineered (GE) seeds have progressively started using more and more Roundup.

The increased pesticide residue remains in the foods that wind up on your dinner table, as glyphosate is taken up systemically throughout the plant and cannot be washed off.

About 90 percent of the corn produced in the US is genetically engineered, and GE soybeans account for almost 95 percent of US production. In other words, if you're eating non-organic corn or soybeans in the United States, you're eating a genetically engineered crop that's been repeatedly and thoroughly drenched in glyphosate. The same applies to eating meats from animals raised in confined animal feeding operations (CAFOs), as they’re typically fed GE grains.

The danger to you and your children is very real, according to the latest research. While Monsanto insists that Roundup is safe and “minimally toxic” to humans, a recent report published in the journal Entropy10 argues that glyphosate residues, found in most commonly consumed foods in the Western diet courtesy of GE sugar, corn, and soy, “enhance the damaging effects of other food-borne chemical residues and toxins in the environment to disrupt normal body functions and induce disease.” According to the authors:

"Negative impact on the body is insidious and manifests slowly over time as inflammation damages cellular systems throughout the body.”

The main finding of the report is that glyphosate inhibits cytochrome P450 (CYP) enzymes, a large and diverse group of enzymes that catalyze the oxidation of organic substances. This, the authors state, is “an overlooked component of its toxicity to mammals.” One of the functions of CYP enzymes is to detoxify xenobiotics—chemical compounds found in a living organism that are not normally produced or consumed by the organism in question. By limiting the ability of these enzymes to detoxify foreign chemical compounds, glyphosate enhances the damaging effects of those chemicals and environmental toxins you may be exposed to—including other pesticides.

How You Can Avoid Toxic Pesticide Exposure

First and foremost, to limit your exposure to the most common agricultural chemicals, such as neonicotinoids and glyphosate, you want to buy as much fresh organic produce as possible, as synthetic chemicals are not allowed on organic crops. For a good guide to which conventionally grown produce carry the lowest pesticide residues, and which you’re best off buying organic due to their heavy pesticide load, see my recent article, How to Find the Healthiest Fare in Meat and Produce Aisles.

Since years' worth of these toxins now pollute our soils and waterways, including the sources of most if not all human drinking water, I also recommend investing in a good water filtration system for your home or apartment to ensure you are drinking the purest water possible. Also consider a shower filter, as they may actually cause more damage to your body through your skin than from drinking unfiltered water. Additional recommendations to limit your exposure to toxic pesticides and herbicides include:

  1. Grow your own food. While this may be a challenge for many, nearly everyone, even those with a studio apartment or a dorm room can easily grow sprouts that can serve as a large percentage of the organic vegetables that you eat.
  2. Detoxify your lawn. If you have a lawn care service, make sure they are not using the organophosphate pesticide trichlorfon. Also, avoid using Roundup to control weeds around your home.
  3. Clean out your shed. The pesticide diazinon (sold under the brand names Diazinon or Spectracide) has been banned from residential, but there might be some left in your old garden shed.
  4. Use natural cures for a lice infection. Malathion is used for treatment of head lice. Don’t put a neurotoxin on your child's head.
  5. Check your school's pest control policy. If they have not already done so, encourage your school district to move to Integrated Pest Management, which uses less toxic alternatives.




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By Dr. Mercola

As Americans increasingly seek access to healthful, fresh-from-the-farm foods like raw milk, private buying agreements like herdshares are becoming more popular. A herdshare is a private agreement between a farmer and an individual in which the farmer is paid to take care of an animal, a cow for example that belongs to one or more people.

You essentially pay a onetime purchase fee to “buy a share” of a farmer’s herd, which entitles you to the benefits of owning that cow, such as a certain amount of milk each week.

Wisconsin dairy farmer Vernon Hershberger provides food to members of such a private buying club, supplying them with fresh raw milk and produce.

If you believe that you have a right to eat what you want, without having to get the government’s permission first, it’s hard to imagine what could be wrong with such an agreement, but Wisconsin is one of a handful of states that is aggressively targeting raw-milk farmers, seeking to criminalize their peaceful practice of food production.

Vernon Hershberger’s case is particularly glaring, as even though a jury nullified the case, the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) still tried to put him in jail.

Wisconsin Seeks to Jail Raw Milk Farmer After Jury Finds Him Innocent

On May 20, Hershberger’s trial began at the Sauk County Courthouse. He was charged with four criminal misdemeanors for supplying a private buying club with raw milk and other fresh produce.

  1. Operating a retail food establishment without a license
  2. Operating a dairy farm as a milk producer without a license
  3. Operating a dairy plant without a license
  4. Violating a holding order by removing the members’ food from the embargoed refrigerators

However, since Hershberger only supplies food to paid members in a private buying club, he has long maintained that he is not subject to state food regulations, and jurors must have agreed.

On May 25, he was acquitted of three charges of producing, processing and selling milk without state licenses. They did, however, find him guilty of violating a holding order, which required that he not sell any food or milk from his store as a condition of his bail.

Following a Capital Times online article in which it’s reported that Hershberger stated he had continued to supply his buying club members with fresh food all along, the Wisconsin Department of Justice (DOJ) filed a motion to revoke Hershberger’s bail and instead send him to jail – after he’d already been acquitted!

Fortunately, Hershberger will not be going to jail for this “crime,” as on June 13 he was sentenced to pay a $1,000 fine plus $513 in court costs – avoiding jail time, probation and the maximum possible fine of $10,000.

Still, the fact that the motion was filed in the first place is deeply disturbing. The Cornucopia Institute reported:1

“Hershberger’s attorney, Glenn Reynolds, called the motion very disappointing because the bail terms he’s accused of violating are the same activities that led to the charges of which he was acquitted. ‘It seems vindictive in my view,’ he said. ‘He goes to trial and wins and now they want to put him in jail? What is the point of this sort of motion?’”

What’s the point is a very good question, indeed, as it seems clear the state is trying to take a stand against Hershberger for example’s sake … but why?

How Can They Continue to Claim This Is About Safety?

One of the most common excuses given for why farmers are raided, prosecuted, and shut down is that raw foods may be potentially harmful to human health. But those buying these products are doing so willingly, in many cases travelling great distances to access these fresh-from-the-farm foods.

Wisconsin is not doing these food buyers any favors by taking away their right to fresh food. Instead, they are taking a stand against Hershberger because his acquittal could have a major impact on increasing raw milk sales in the state. As noted by the Farm-to-Consumer Legal Defense Fund (FTCLDF):2

"'There is more at stake here than just a farmer and his few customers,' says Hershberger, 'this is about the fundamental right of farmers and consumers to engage in peaceful, private, mutually consenting agreements for food, without additional oversight.'"

Back in 2010, after weeks of lobbying by the Wisconsin dairy industry, former Wisconsin Governor Jim Doyle vetoed a bill that would have made sale of on-the-farm raw milk legal, stating he "must side with public health and safety of the dairy industry."

But high-quality raw milk is no more a threat to public health than sunshine or natural supplements (against which similar “public-safety” wars have been aged). CDC data3 shows there are about 412 confirmed cases of people getting ill from pasteurized milk each year, while only about 116 illnesses a year are linked to raw milk. And research by Dr. Ted Beals, MD, featured in the summer 2011 issue of Wise Traditions,4 the quarterly journal of the Weston A. Price Foundation, shows that you are about 35,000 times more likely to get sick from other foods than you are from raw milk!

So when officials say they are siding with public health and the safety of the dairy industry, they are really only siding with the dairy industry, in an attempt to protect them from all competition. The reason why small-scale organic, raw dairy farms are so threatening to the dairy industry is because they simply cannot produce safe raw milk in a confined animal feeding operation (CAFO). Cows raised under such conditions produce milk that must be pasteurized in order to be safe to drink, as the unnatural diet and environment dramatically alters the nutritional and bacterial composition of the milk, making it otherwise unfit to drink.

The FDA Is Leading the War Against Raw Milk

State-level efforts against raw milk are only part of a larger problem, which is the US Food and Drug Administration’s (FDA) 25-year-old regulation banning raw milk for human consumption in interstate commerce. But even this is up for challenge. Pete Kennedy, president of FTCLDF wrote:

At the federal level, a bill that would repeal the interstate ban has been introduced the last two sessions of Congress and will likely be reintroduced this session; the bill would allow raw milk to be taken across state lines either by consumers or their agents who obtain it in another state or by producers or their agents delivering it to consumers in another state. The bill would not affect the power of states to determine whether the sale of raw milk would be illegal within its borders.”

Currently, legislation that would either legalize or expand the sale of raw milk has been introduced in Arkansas, Hawaii, Iowa, Indiana, Kansas, Massachusetts, Montana, Oklahoma, Rhode Island, Texas, Vermont, and Wyoming. A bill is also expected to be filed shortly in Wisconsin, according to Kennedy. Many are simply getting fed up with the FDA and their state governments trying to dictate what its residents are allowed to eat. This is not an issue of a few “rogue” farmers trying to sell an illegal product; it’s an issue of food freedom. Kennedy continued:

The fight over raw milk stands as a symbol of the much larger fight for food freedom. Who gets to decide what you eat? You? Or the FDA? If the FDA and state agencies are allowed to impose their view of ‘safe food’ on consumers, raw milk won’t be the only thing lost – all our food will be pasteurized, irradiated, and genetically engineered. The effort to reclaim our right to buy and consume raw milk is leading the way for everyone who wants to be able to obtain the food of their choice from the source of their choice.”

Right now, your food freedom is on the chopping block. In North Dakota, a new bill threatens to make herdshare illegal.5 In New Mexico, a bill has been introduced that would ban the sale of raw milk, while a proposed regulation in Illinois that is currently in the drafting stage would similarly restrict access to raw milk. So the time to take action is now

Stand Up for Your Right to Food Freedom

The effort to reclaim your right to buy and consume raw milk is leading the way for everyone who wants to be able to obtain the food of their choice from the source of their choice. So please, get involved! I urge you to embrace the following action plan to protect your right to choose your own foods:

  1. Get informed: Visit www.farmtoconsumer.org or click here to sign up for action alerts.
  2. Join the fight for your rights: The Farm-to-Consumer Legal Defense Fund (FTCLDF) is the only organization of its kind. This 501(c)(4) nonprofit organization provides a legal defense for farmers who are being pursued by the government for distributing foods directly to consumers. Your donations, although not tax deductible, will be used to support the litigation, legislative, and lobbying efforts of the FTCLDF. For a summary of FTCLDF’s activities in 2012, see this link.
  3. Support your local farmers: Buy from local farmers, not the industry that is working with the government to take away your freedoms.


Sources:


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By Dr. Mercola

If you’re a cheese lover struggling to resist cheese because you’ve heard it’s not good for you, then brace yourself for some really good news. Cheese can be an excellent source of nutrition, a food you may want to include more of in your diet rather than less.

Cheese, especially that made from the milk of grass-pastured animals, is an excellent source of several important nutrients.

One of the most valuable nutrients in cheese is vitamin K2, which the latest scientific studies indicate is even more important to your heart, brain and bones than previously thought. Cheese also provides a cornucopia of vitamins, minerals (including calcium), protein, and fat.

Even if you’re lactose intolerant, there are many cheeses you will likely tolerate just fine. Most of the lactose is removed during the cheesemaking process. Pairing cheese with other foods enhances your absorption of important nutrients.

This article aims to separate fact from myth and will provide guidance on how you can incorporate your favorite cheeses into your daily diet, with joy and gratitude instead of guilt.

Cheese Will Clog Up Your Arteries... and Other Food Fairytales

Although nobody knows for certain when or where cheesemaking first began, cheese has been a staple for thousands of years. Cheese dates back to the domestication of milk-producing animals, between 8,000 and 10,000 years ago.1 The history of cheese can be traced back to the Roman Empire, the Middle East, Tibet, Mongolia, the Ming Dynasty, and of course Europe.

In spite of its rich history and enthusiastic fan base, cheese is much maligned in America due to the saturated fat/cholesterol myth.

Does eating cheese lead to obesity and heart disease? Absolutely not! This unfortunate myth stems from an outdated and seriously flawed hypothesis, perpetuated by decades of wildly successful marketing.

Numerous recent studies have confirmed saturated fat is NOT associated with obesity or heart disease and is actually associated with improved heart health. Most Americans today are consuming inadequate saturated fat. In fact, the Greeks, French and Germans eat much more cheese than Americans but enjoy lower rates of hypertension and obesity.2

I believe one of the primary factors driving obesity is overconsumption of sugar, refined grain and processed food in the standard American diet, made worse by a sedentary lifestyle. Given these facts, many nutritional experts believe that most people need 50 to 70 percent healthful fats in their diet for optimal health, and I agree. Cheese is a delicious way to help you meet that requirement Cheese holds a wealth of good nutrition, including:

  • High-quality protein and amino acids
  • High-quality saturated fats and omega-3 fats
  • Vitamins and minerals, including calcium, zinc, phosphorus, vitamins A, D, B2 (riboflavin) and B12
  • Vitamin K2
  • CLA (conjugated linoleic acid), a powerful cancer-fighter and metabolism booster

Natural Cheese Versus Fake Cheese

There is a difference between natural cheese and processed “cheese foods.” Natural cheese is a simple fermented dairy product, made with nothing more than a few basic ingredients — milk, starter culture, salt and an enzyme called rennet. Salt is a crucial ingredient for flavor, ripening and preservation. You can tell a natural cheese by its label, which will state the name of the cheese variety, such as “cheddar cheese,” “blue cheese,” or “brie.” Real cheese requires refrigeration.

The starter culture and cheesemaking methods are what give each variety of cheese its particular taste, texture, shape and nutritional profile. The following factors differentiate between one variety of cheese and another:

  • Specific starter culture, which is the bacteria or mold strains that ripen the cheese
  • Type of milk used (cow, sheep, goat, etc.), and the conditions under which those animals were raised
  • Methods of curdling, cutting, cooking and forming the curd
  • Ripening conditions such as temperature, humidity, and aging time (curing)

Processed cheese or “cheese food” is a different story. These products are typically pasteurized and otherwise adulterated with a variety of additives that detract from their nutritional value. The label will always include the words “pasteurized process,” which should be your clue to walk on by. Velveeta3 is one example, with additives like sodium phosphate, sodium citronate and various coloring agents. Another clue is that most don’t require refrigeration. So, be it Velveeta, Cheese Whiz, squeeze cheese, spray cheese, or some other imposter — these are NOT real cheeses and should be banished from your shopping cart.

Raw Cheese from Pasture-Raised Animals is the Ultimate

Ideally, the cheese you consume should be made from the milk of grass-fed animals raised on pasture, rather than grain-fed or soy-fed animals confined to feedlot stalls. The biologically appropriate diet for cows is grass, but 90 percent of standard grocery store cheeses are made from the milk of CAFO cows. These cheeses are nutritionally inferior to those from grass-pastured animals. The higher quality the milk, the higher the quality of the cheese... it’s just that simple.

Even cheesemakers will tell you that raw cheese has a richer and deeper flavor than cheese made from pasteurized milk because heat destroys the enzymes and good bacteria that add flavor to the cheese. They explain that raw cheese has flavors that derive from the pastureland that nourished the animals producing the milk, much like wine is said to draw its unique flavors from individual vineyards. Grass-fed dairy products not only taste better, they are also nutritionally superior:

  • Cheese made from the milk of grass-fed cows has the ideal omega-6 to omega-3 fat ratio of 2:1. By contrast, the omega-6 to omega-3 ratio of grain-fed milk is heavily weighted on the side of omega-6 fats (25:1), which are already excessive in the standard American diet. Grass-fed dairy combats inflammation in your body, whereas grain-fed dairy contributes to it.
  • Grass-fed cheese contains about five times the CLA of grain-fed cheese.
  • Because raw cheese is not pasteurized, natural enzymes in the milk are preserved, increasing its nutritional punch.
  • Grass-fed cheese is considerably higher in calcium, magnesium, beta-carotene, and vitamins A, C, D and E.
  • Organic grass-fed cheese is free of antibiotics and growth hormones.

The FDA Cracks Down on Raw Cheese

For years, federal regulators have been threatening to ban raw milk products, including raw cheese, due to what they claim are increased safety risks. Lately, they’ve begun targeting artisan cheesemakers, as this is a fast growing industry in America.4

However, the FDA’s crackdown on raw cheese is based on a flawed argument.5 According to Grist, between 1973 and 1999 there’s not a single report of illness from either raw or pasteurized cheeses. However, since the year 2000, illnesses have begun to appear from raw and pasteurized cheese alike. Most outbreaks have been found to result from post-production contamination and laxity in quality control, not lack of pasteurization.

The truth is that raw cheese is not inherently dangerous, provided high standards are followed in the cheesemaking process. Hard cheeses like cheddar dry out as they age, making them relatively inhospitable to invading bacteria. The FDA’s attack on raw cheese is not based on facts, but simply is an extension of their long-standing hostility toward raw milk in general.

Salt Content Prompts Cries of ‘Cheesageddon’

Another recent concern is that cheese contains excessively high levels of salt. The Consensus Action on Salt and Health (CASH) is a group interested in reducing the salt in processed foods and is urging the cheese industry to reduce the amount of salt in cheese.6 It is true that American food is the saltiest food in the world. But how much is cheese responsible for the excess sodium in the American diet?

Cheese looks like a minor player when you consider the amount of salt in processed food and restaurant food, and how much more of those are consumed than cheese. Take a look at the table below, which compares salt levels in the saltiest cheeses and in the saltiest restaurant dishes, and you’ll see what I mean. Keep in mind that your sodium intake should be less than about 2,300 mg per day, which is approximately a teaspoon.

About 90 percent of the salt in the standard American diet comes from packaged foods and restaurant foods. Only about 11 percent is attributable to the salt you add during cooking and at the dinner table. Your sodium intake is even lower if you salt your food with natural sea salt instead of processed salt. It seems clear to me that, given all of the nutrition packed into a relatively small piece of cheese, the sodium is not much of an issue, particularly if you minimize processed or packaged foods and don’t eat out often.

Food (Cheeses Listed are the Saltiest Varieties) Sodium (mg)
Roquefort cheese (100g) 1,300
Edam cheese (100g) 1,200
Feta cheese (100g) 1,200
Chicken McNuggets (100g)7 1,600
Dunkin Donuts Salt Bagel8 3,420
Ruby Tuesday Chicken Piccata 4,194
P.F. Chang’s Mu Shu Pork 5,820
Red Robin Buffalo Clucks and Fries 4,479
P.F. Chang’s Pork and Double Pan-Fried Noodles — awarded “Saltiest Food in America” 7,900

Vitamin K2, Vitamin D3, and Calcium — A Whole in One!

Download Interview Transcript

Cheese contains a synergistic blend of nutrients that make it a veritable nutritional powerhouse. When consumed together, vitamins K2 and D3 and calcium are especially powerful for protecting your bones, brain and heart. And cheese contains all three! I recently interviewed Dr. Kate Rheamue-Bleue, a Naturopathic Physician and author of one of the most comprehensive books on vitamin K2. Vitamin K2 plays critical roles in protecting your heart, brain, and bones, as well as giving you some protection from cancer.9 Not only does K2 help channel calcium into the proper areas of your body (bones and teeth), it also prevents it from being deposited in areas where it shouldn’t, such as your arteries and soft tissues.

So, taking calcium supplements when you don’t have adequate vitamin K2 is a setup for arterial calcification and cardiovascular problems.

Since cheeses are all produced by different strains of bacteria, they differ in their total vitamin K2 content, as well as their K2 subtypes. Cheeses contain primarily subtypes MK-4, MK-8 and MK-9, in varying proportions. MK-4 is the least biologically active form (but the most abundant form in cheese), so it takes more of it for your body to benefit. MK-7, MK-8 and MK-9 stay active in your body longer so your body can benefit from much lower levels.

According to a 2009 Dutch study,10 subtypes MK-7, MK-8 and MK-9 are associated with reduced vascular calcification even at small dietary intakes (as low as 1 to 2 mcg per day).

When It Comes to K2, How Do Your Favorite Cheeses Stack Up?

In my interview with Dr. Rheamue-Bleue, she identified the cheeses highest in K2 are Gouda and Brie, which contain about 75 mcg per ounce. Hard cheeses are about 30 percent higher in vitamin K2 than soft cheeses. In perusing the nutritional tables myself, I found it interesting that the cheeses highest in vitamin K2 also tend to be the highest in protein and calcium — so the most nutritious overall. Just realize that the values listed for “vitamin K” in common nutritional tables are of limited value because they don’t specify what TYPE of vitamin K they’re measuring.

As it turns out, scientists have found high levels of MK-7 in one type of cheese: Edam.11 This is wonderful news for those of you who would much rather sit down to a slice of Edam than a bowl of natto! (Natto, a strongly fermented Japanese soybean product, has the highest MK-7 level of any food.)

Earlier, I made my case for selecting raw cheeses from grass-pastured, grass-fed animals. However, cheese contains a bacterially-derived form of K2, so it doesn’t matter if the cheese was made from grass-fed milk or not — the bacteria used to culture the cheese is the same. Grass-fed dairy is important for the other reasons I’ve already discussed — just not specifically for the K2.

To summarize then, if you’re going to select cheese with your primary goal being a good source of vitamin K2, the best ones are:

  • Gouda
  • Brie
  • Edam
  • Other cheeses with lesser, but significant, levels of K2: Cheddar, Colby, hard goat cheese, Swiss, and Gruyere.12

Smile and Say Cheese!

Cheese lovers rejoice! Don’t be afraid to add healthy high-quality cheese to your diet. Cheese offers a synergistic blend of vitamins, minerals, amino acids and omega-3 fatty acids, including the magic trio of vitamin D3, vitamin K2 and calcium. This nutrient triad is vitally important for reducing your risk of cardiovascular disease and osteoporosis. And don’t be afraid of raw cheese (as long as it comes from a reputable cheesemaker), which beats ordinary cheese in both taste and nutrition.

Your best option is cheese made from the milk of pasture-raised cows, sheep and goats, as opposed to feedlot livestock fed grain and soy.

Although some cheeses are fairly high in salt, their sodium levels pale in comparison to those in common fast foods, processed foods and popular restaurant entrees that make up a large part of the standard American diet. My top picks are Gouda, Brie, and Edam cheese, but you can’t go wrong with high-quality cheddar, Swiss, Colby, Gruyere, and goat cheese.  For an extensive website about cheeses, including a database that’s searchable by name, country of origin, type of milk, and even texture, you might enjoy Cheese.com.





Related Articles:

  Why You Need to Avoid Low Fat Milk and Cheese

  The Unsavory Truth of the McRib and Other Fake Foods, and Why Russia Banned US-Raised Meat

  Who Knew this Cocktail of up to 20 Chemicals Was in Your Glass of Milk?

 Comments (194)

By Dr. Mercola

Could a ketogenic diet eventually be a “standard of care” drug-free treatment for cancer? Personally, I believe it’s absolutely crucial, for whatever type of cancer you’re trying to address, and hopefully some day it will be adopted as a first line of treatment.

A ketogenic diet calls for eliminating all but non-starchy vegetable carbohydrates, and replacing them with healthy fats and high quality protein.

The premise is that since cancer cells need glucose to thrive, and carbohydrates turn into glucose in your body, then lowering the glucose level in your blood though carb and protein restriction, literally starves the cancer cells into oblivion.  Additionally, low protein intake tends to minimize the mTOR pathway that accelerates cell proliferation.

This type of diet, in which you restrict all but non-starchy vegetable carbs and replace them with low to moderate amounts of high quality protein and high amounts of beneficial fat, is what I recommend for everyone, whether you have cancer or not. It’s a diet that will help optimize your weight and  all chronic degenerative disease. Eating this way will help you convert from carb burning mode to fat burning.

Dr. Thomas Seyfried is one of the leading pioneer academic researchers in promoting how to treat cancer nutritionally. He’s been teaching neurogenetics and neurochemistry as it relates to cancer treatment at Yale University and Boston College for the past 25 years.

He’s written over 150 peer-reviewed scientific articles and book chapters, and has also published a book, Cancer as a Metabolic Disease: On the Origin, Management, and Prevention of Cancer.

Ketogenic Diet Accepted as First Line Approach for Epilepsy; is Cancer Next?

The ketogenic diet has actually been used for managing seizures in children for quite some time. While Dr. Seyfried and his team worked on brain cancer and epilepsy in mice, one of his students suggested investigating whether or not a ketogenic diet might also be effective against tumors.

So, in the late ‘90s, they began dovetailing their work on ketogenic diets and epilepsy and cancer together, eventually bringing them to a better understanding of how changing your whole-body metabolic state can be effective in targeting and eliminating tumor cells.

Interestingly, clinical medicine has recognized the ketogenic diet as a valuable option in the treatment of epilepsy since the late 90’s.

“I served as the organizer for the Ketogenic Diet Special Interest Group at the American Epilepsy Society,” Dr. Seyfried says.

“We initially started as a small focus group with the folks from Johns Hopkins Medical School, where the diet has had its greatest use and impact. And then we started to grow and substantially increase interest mainly through the efforts of Jim Abrahams.

Jim started the Charlie Foundation for his son Charlie, who went through a near-death experience from seizures and was rescued using ketogenic diets. His colleague, Meryl Streep, the famous movie actress, became very involved in this.

Now the ketogenic diet is receiving considerable attention in the epilepsy community as a first line of approach. Although this is still not widely accepted, I have to admit that the ketogenic diet is now recognized as an important component for the management of refractory seizures in children.”

According to Dr. Seyfried, the mechanism by which the ketogenic diet manages seizures is not nearly as clear as the way the ketogenic diet manages cancer. This is ironic considering that it’s barely known, let alone applied, within oncology circles, while it’s already a first line of treatment for epilepsy. In the case of cancer, it’s well-established that it’s the glucose reduction that kills the cancer cells.

Cancer is a Mitochondrial Metabolic Disease

Dr. Seyfried has developed a process called metabolic control analysis, which essentially analyzes the metabolic flux through different pathways that occurs when you transition your body from one major fuel source to another major fuel source, to maintain energy homeostasis in your body. Many believe or are under the impression that cancer is primarily a genetic disease, but Dr. Seyfried dispels such notions.

“We’re not going to make major advances in the management of cancer until it becomes recognized as a metabolic disease. But in order to do that, you have to present a massive counterargument against the gene theory of cancer,” he says.

“One of the key issues here is that if you transplant the nucleus of a cancer cell into a normal cell, you don’t get cancer cells. You can actually get normal tissues and sometimes a whole normal organism from the nucleus of a cancer cell. Now, if the tumors are being driven by driver genes –  all these kinds of mutations and things that we hear about –  how is it possible that all of this is changed when you place this cancer nucleus into the cytoplasm of a cell with normal mitochondria?

The gene theory cannot address this. It clearly argues strongly against the concept that genes are driving this process.  Actually, a very few people inherit genes that predispose them to cancer. Most people inherit genes that prevent cancer. And those few genes that are inherited – the germ line like the BRCA1 mutations, B53, and a few other very rare cancers – these inherited mutations appear to disrupt the function of the mitochondria.”

According to Dr. Seyfried, the mitochondria—the main power generators in your cells—are the central point in the origin of most cancers. Your mitochondria can be damaged not only by inherited mutations, thereby increasing your risk for a particular type of cancer, such as the BRCA1 and BRCA2 mutations that increase your risk of breast- and ovarian cancer. They can also be damaged by environmental factors, such as toxins and radiation, both ionizing and non-ionizing. Over time, damage to your mitochondria can lead to dysfunction and tumor formation.

“It’s ultimately a disease of the mitochondrial energy metabolism, which is the origin of the disease,” Dr. Seyfried says. “[O]nce the mitochondria become dysfunctional or insufficient in ability, mutations will occur. The drugs that have been developed based on the genome projects have been largely ineffective in providing long-term care and are associated with toxic effects. As long as the field continues to focus on that part of the disease, which is a downstream epiphenomenon, there will be no major advances in the field simply because that’s not the relevant aspect of the disease.”

Sugar is the Primary Fuel for Most Cancers

Controlling your blood-glucose leptin and insulin levels through diet, exercise and emotional stress relief can be one of the most crucial components to a cancer recovery program. These factors are also crucial in order to prevent cancer in the first place.In 1931 the Nobel Prize was awarded to German researcher Dr. Otto Warburg, who discovered that cancer cells have a fundamentally different energy metabolism compared to healthy cells, and that malignant tumors tend to feed on sugar. More recently, researchers discovered that while cancer cells feed on both glucose and fructose, pancreatic tumor cells use fructose specifically to divide and proliferate.

Dr. Seyfried’s work confirms that sugar is the primary fuel for cancer, and that by restricting sugar and providing an alternate fuel, namely fat, you can dramatically reduce the rate of growth of cancer. He explains:

“When we’re dealing with glucose and [cancer] management, we know from a large number of studies that if respiration of the tumor is ineffective, in order to survive, the cells must use an alternative source of energy, which is fermentation. We know that glucose is the primary fuel for fermentation. Fermentation becomes a primary energy-generating process in the tumor cell. By targeting the fuel for that process, we then have the capability of potentially managing the disease.”

The strategy Dr. Seyfried suggests is a low-carb, low to moderate protein, high-fat diet, which will effectively lower your blood sugar. This is an easily measurable parameter that you can check using a diabetic blood glucose meter. This type of diet, called a ketogenic diet, will also elevate ketone bodies, as fat is metabolized to ketones that your body can burn in the absence of food. When combined with calorie restriction, the end result will put your body in a metabolic state that is inhospitable to cancer cells.

“[Ketones] is a fat breakdown product that can replace glucose as a major fuel for many of the organs and especially our brain,” he says.

Tumor cells, however, cannot use ketone bodies because of their respiratory insufficiency. So the ketogenic diet represents an elegant, non-toxic way to target and marginalize tumor cells. It also allows you to dramatically lower your glucose levels, as the ketones will protect your body against any hypoglycemia that might otherwise be induced by carb restriction.

“All of the newer cells in your body will be transitioned to these effective ketones, thereby preventing them from damage from hypoglycemia. At the same time, the tumor cells are now marginalized and under tremendous metabolic stress. It’s a whole body therapy—you need to bring the whole body into this metabolic state,” he explains.

“We like to call it a new state of metabolic homeostasis: a state where ketones have reached the steady state level in your blood and glucose has reached a steady lower level in your blood... “If it’s done right and implemented right, it has powerful therapeutic benefits on the majority of people who suffer from various kinds of cancers. Because all cancers have primarily the same metabolic defect.” 

For Cancer Protection, Reverse Your Glucose to Ketone Ratios

Dr. Seyfried uses ketones and glucose as the measures of this new metabolic state. The parameters associated with an ideal state are ketone levels equal to or higher than the glucose level in your blood.

“There’s a high ratio of glucose to ketones. But in a fasted or therapeutic state, this ratio is actually reversed. Ketones can actually become higher than glucose,” he says. “What they can do is they can get their blood sugars down to 2.5 to 3 millimolar [equivalent to about 55-65 mg/dl], and then their ketones to up to 3 or 4 millimolar, where the ratio is now reversed. It’s this state that now brings the body into this new physiology.”

You can easily check your glucose levels at home, you’d need to work with a doctor to measure ketone levels in your blood. Generally speaking, a fasting glucose under 100 mg/dl suggests that you're not insulin resistant, while a level between 100-125 suggests you're either mildly insulin resistant or pre-diabetic.  Here, Dr. Seyfried recommends getting your glucose down to a steady level of about 55-65 mg/dl, which is about HALF of what’s conventionally considered “good” or “normal.”

Blood ketones can be easily measured using the Medisense Precision Xtra blood glucose and ketone monitor from Abbot Laboratory.  As many pharmacies might not stock the meter (bar code #, 93815 80347), it might be necessary to call Abbott directly (1-800-527 3339) to obtain the meter.  According to Dr. Seyfried, the Precision Xtra seems the most accurate of all the ones he’s used.

It is important to mention, however, that the blood ketone strips are more expensive than the blood glucose strips.  Dr. Seyfried therefore recommends measuring your blood ketones every few days rather than 3x/day for blood glucose.  Although urine ketone measurement is a cheap way to assess ketones, urine ketone levels are not always indicative of blood ketone levels.  It is best if you can measure ketones from both blood and urine.

“I work with nutritionists and physicians,” Dr. Seyfried says. “The problem with cancer patients is that many of the practitioners are unfamiliar with this whole approach, so there’s this tremendous gap. We have knowledge of how to do this. We have patients willing to do it. But we lack professionals that are trained or even understand the concepts of how to implement these kinds of approaches.”

All of the guidelines are included in Dr. Seyfried’s book, Cancer as Metabolic Disease, which is available on Amazon. He’s also published a couple of papers 1,2 that outline the guidelines and treatment strategies for cancer patients.  One caveat to consider is your use of medications, as you need to know what the adverse effects might be if you use a medication at a particular dosage along with this kind of metabolic therapy.

The Importance of Intermittent Fasting

In my experience, the vast majority of people are adapted to burning carbs as their primary fuel, as opposed to burning fat. One of the most effective strategies I know of to become a fat burner is to restrict your eating to within a six- to eight- hour window, which means you’re fasting for about 16-18 hours each day. This upregulates the enzymes that are designed to burn fat as a fuel, and downregulates the glucose enzymes.  This kind of intermittent fasting plan can be a useful modality to help you make the transition to a ketogenic diet.

“That’s the way it started in the clinic for children with epilepsy. Basically, the child is given a 24-hour and sometimes 48-hour fast – water only. And then the ketogenic diet is introduced in relatively measured and small amounts,” Dr. Seyfried says.

“Your body transitions naturally that way. Intermittent fasting is actually a very strong component of the approach. A three-day fast is uncomfortable, but it’s certainly doable. It gets your body into a new metabolic state, and then you can apply these therapies.  The hardest part, I think, of this fasting is the first three to four days, depending on the individual and how many times they’ve done this.

That’s basically trying to break your addiction to glucose. The removal of glucose from the brain elicits the same kind of problems or events as you would if you were addicted to drugs, alcohol, or something like this. You get malaise, headaches, nausea, lightheadedness. You get all the kinds of physiological effects that you would get from withdrawal of any addicting substance. I look at glucose as an addictive substance. It’s an addictive metabolite. Your brain is comforted by having glucose; your body is comforted. And when you break that glucose addiction, you have these particular feelings.

... Fasting certainly has remarkable health benefits to the body: strengthening the mitochondria network system within the cells of your body. As long as the mitochondria of your cells remain healthy and functional, it’s very unlikely that cancer can develop under these particular states.”

Unless you have a very serious disease, I believe it is best for most people to implement intermittent fasting slowly over six to eight weeks rather than a three day complete fast. You begin by not eating for three hours before you go to bed, and then gradually extend the time  you eat breakfast until you have skipped breakfast entirely and your first meal of the day is at lunch time.  Of course you are only consuming non-starchy vegetables for carbs, low to moderate protein and high quality fats. One of the things I’ve noticed is that once you’ve made the transition from burning carbs to burning fat as your primary fuel, the desire for junk foods and sugar just disappears like magic.

The Potential Role of Protein in Cancer Formation

Glutamine-- one of the most common amino acids  found in proteins—is another interesting aspect of cancer that Dr. Seyfried is still investigating. In his opinion, most oncologists who do cancer metabolism recognize that sugar (both glucose and fructose) is the prime fuel for driving tumor growth. However, mounting research also indicates that glucose and glutamine together act powerfully and synergistically on the growth of tumor cells.

“These two fuels work together in concert to provide a continual growth,” he says.

One of my early mentors was Dr. Ron Rosedale. He taught me, about 20 years ago, about the importance of insulin control and then, more recently, about the importance of reducing protein intake, for this very reason. Most Americans likely eat far more protein than they really need, and this excess could be a factor in cancer. The Paleo approach makes sense on many levels, especially with regards to intermittent fasting and lowering your glucose levels. The Paleo approach is very clear about reducing grains and any food that raises your blood sugar. But there are, of course, two other macronutrients left: fat and protein.

Many Paleo followers are overly concerned about getting high amounts of protein, which could increase your glutamine and branched chained amino acid levels, which in turn tend to activate mTOR. In some, that could be problematic. According to Dr. Rosedale’s research, the pathway known as the mammalian target of rapamycin (mTOR), is controlled by lowering your protein intake. This pathway may be another metabolic pathway that helps control and prevent cancer growth.

Calorie Restriction is a Key Part of the Equation

Dr. Seyfried, however, is more cautious in his evaluation of mTOR and reducing protein for cancer prevention. In his view, the most important aspect of cancer prevention and treatment is the intermittent fasting, or overall calorie restriction, which includes eating less of everything, period.  But while calories from carbohydrates should be virtually eliminated, calories from protein just need to be reduced, while most need to increase their intake of healthful fats to get a more ideal ratio of fat to protein. As far as the specific types of fats recommended, Dr. Seyfried uses medium-chain triglycerides, i.e. coconut oil, butter, macadamia nuts, and other types of saturated fats, which is what I’ve long recommended as well. “The saturated fats are converted to ketones much more readily than polyunsaturated fats,” he explains.

So, keep in mind that for cancer prevention and treatment, the actual calorie restriction is an important part of the equation:

“We did some studies on this with our model of glioma... The mTOR in our model was not dramatically changed by these metabolic therapies. But I know others have reported it, and this could be an important component for certain other kinds of cancers. But my limited work with this did not demonstrate this to be a major issue, at least in the glioma model that we looked at. We showed that you could give animals a high-fat, low-protein diet, as much as they want (zero carbs in this diet), and their blood glucose was just as high or higher than the mice that were eating the protein-carb diet.

It was more or less related to the total consumption of calories. Most calories boil down to glucose. Proteins will be metabolized to glucose. Carbs are metabolized to glucose; fats are not... We don’t get any therapeutic benefit either in epilepsy or cancer when we allow the animals or people to eat as much of these high-fat diets as they want. We get no therapeutic benefit.

Therapeutic benefit comes from the restriction of the calories in the diet.  The ketogenic diet or a low-carb, low-protein diet is simply a way to take the sting out of a therapeutic fast. Because as long as the glucose and ketones can get into the metabolic range (and you can do it with eating small amounts of a high-fat diet rather than therapeutic fasting), then that just makes people feel a little better about how they’re doing this rather than feeling that I’m starving to death.”

Hyperbaric Oxygen Therapy

I recently interviewed Dr. D’Agostino who is another cancer as a metabolic disease researcher. He published a recent paper3 that shows a phenomenal synergy with a ketogenic diet and the use of hyperbaric oxygen for cancers that have metastasized.  These types of cancers are notoriously difficult to treat. I would strongly encourage anyone struggling with this challenge to consider this type of therapy.

More Information

From my perspective, it’s nothing short of medical malpractice and negligence to fail to integrate this type of dietary strategy into a patient’s cancer treatment plan (along with optimizing vitamin D). A ketogenic diet along with intermittent fasting can be easily integrated into whatever cancer treatment plan you decide to follow. Personally, I believe it’s absolutely crucial, no matter what type of cancer you’re trying to address.

That said, remember that a ketogenic diet, in which you replace carbs with low to moderate amounts of protein and high amounts of beneficial fat, like avocado, coconut oil, butter, olive oil and macadamia nuts is recommended for everyone, whether you have cancer or not. It’s a diet that will help optimize your weight and health overall, as eating this way will help you convert from carb burning mode, to fat burning.

To get more specifics about using a ketogenic diet and calorie restriction for the treatment of cancer, I highly recommend picking up Dr. Seyfried’s book, Cancer as a Metabolic Disease. You can also review his papers,4,5 which outline the guidelines and treatment strategies for cancer patients. If you’re a cancer patient, I’d recommend printing them out for your oncologist.

He also has a Facebook page6 for his book, and a website connected to the Boston College Biology Department7 where you can get more information about his work.





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  Ketogenic Diet May Be Key to Cancer Recovery

  How to Starve Cancer Out of Your Body - Avoid These Top 4 Cancer-Feeding Foods

  Dramatically Effective New Natural Way to Starve Cancer and Obesity

 Comments (215)

By Dr. Mercola

Could a ketogenic diet eventually be a “standard of care” drug-free treatment for cancer? Personally, I believe it’s absolutely crucial, for whatever type of cancer you’re trying to address, and hopefully some day it will be adopted as a first line of treatment.

A ketogenic diet calls for eliminating all but non-starchy vegetable carbohydrates, and replacing them with healthy fats and high-quality protein.

The premise is that since cancer cells need glucose to thrive, and carbohydrates turn into glucose in your body, then lowering the glucose level in your blood though carb and protein restriction literally starves the cancer cells into oblivion. Additionally, low protein intake tends to minimize the mTOR pathway that accelerates cell proliferation.

This type of diet, in which you restrict all but non-starchy vegetable carbs and replace them with low to moderate amounts of high-quality protein and high amounts of beneficial fat, is what I recommend for everyone, whether you have cancer or not. It’s a diet that will help optimize your weight and all chronic degenerative disease. Eating this way will help you convert from carb burning mode to fat burning.

Dr. Thomas Seyfried is one of the leading pioneer academic researchers in promoting how to treat cancer nutritionally. He’s been teaching neurogenetics and neurochemistry as it relates to cancer treatment at Yale University and Boston College for the past 25 years.

He’s written over 150 peer-reviewed scientific articles and book chapters, and has also published a book, Cancer as a Metabolic Disease: On the Origin, Management, and Prevention of Cancer.

Ketogenic Diet Accepted as First Line Approach for Epilepsy; Is Cancer Next?

The ketogenic diet has actually been used for managing seizures in children for quite some time. While Dr. Seyfried and his team worked on brain cancer and epilepsy in mice, one of his students suggested investigating whether or not a ketogenic diet might also be effective against tumors.

So, in the late ‘90s, they began dovetailing their work on ketogenic diets and epilepsy and cancer together, eventually bringing them to a better understanding of how changing your whole-body metabolic state can be effective in targeting and eliminating tumor cells.

Interestingly, clinical medicine has recognized the ketogenic diet as a valuable option in the treatment of epilepsy since the late 90’s.

“I served as the organizer for the Ketogenic Diet Special Interest Group at the American Epilepsy Society,” Dr. Seyfried says.

“We initially started as a small focus group with the folks from Johns Hopkins Medical School, where the diet has had its greatest use and impact. And then we started to grow and substantially increase interest mainly through the efforts of Jim Abrahams.

Jim started the Charlie Foundation for his son Charlie, who went through a near-death experience from seizures and was rescued using ketogenic diets. His colleague, Meryl Streep, the famous movie actress, became very involved in this.

Now the ketogenic diet is receiving considerable attention in the epilepsy community as a first line of approach. Although this is still not widely accepted, I have to admit that the ketogenic diet is now recognized as an important component for the management of refractory seizures in children.”

According to Dr. Seyfried, the mechanism by which the ketogenic diet manages seizures is not nearly as clear as the way the ketogenic diet manages cancer. This is ironic considering that it’s barely known, let alone applied, within oncology circles, while it’s already a first line of treatment for epilepsy. In the case of cancer, it’s well-established that it’s the glucose reduction that kills the cancer cells.

Cancer Is a Mitochondrial Metabolic Disease

Dr. Seyfried has developed a process called metabolic control analysis, which essentially analyzes the metabolic flux through different pathways that occurs when you transition your body from one major fuel source to another major fuel source, to maintain energy homeostasis in your body. Many believe or are under the impression that cancer is primarily a genetic disease, but Dr. Seyfried dispels such notions.

“We’re not going to make major advances in the management of cancer until it becomes recognized as a metabolic disease. But in order to do that, you have to present a massive counterargument against the gene theory of cancer,” he says.

“One of the key issues here is that if you transplant the nucleus of a cancer cell into a normal cell, you don’t get cancer cells. You can actually get normal tissues and sometimes a whole normal organism from the nucleus of a cancer cell. Now, if the tumors are being driven by driver genes –  all these kinds of mutations and things that we hear about –  how is it possible that all of this is changed when you place this cancer nucleus into the cytoplasm of a cell with normal mitochondria?

The gene theory cannot address this. It clearly argues strongly against the concept that genes are driving this process.  Actually, a very few people inherit genes that predispose them to cancer. Most people inherit genes that prevent cancer. And those few genes that are inherited – the germ line like the BRCA1 mutations, B53, and a few other very rare cancers – these inherited mutations appear to disrupt the function of the mitochondria.”

According to Dr. Seyfried, the mitochondria—the main power generators in your cells—are the central point in the origin of most cancers. Your mitochondria can be damaged not only by inherited mutations, thereby increasing your risk for a particular type of cancer, such as the BRCA1 and BRCA2 mutations that increase your risk of breast and ovarian cancer. They can also be damaged by environmental factors, such as toxins and radiation, both ionizing and non-ionizing. Over time, damage to your mitochondria can lead to dysfunction and tumor formation.

“It’s ultimately a disease of the mitochondrial energy metabolism, which is the origin of the disease,” Dr. Seyfried says. “[O]nce the mitochondria become dysfunctional or insufficient in ability, mutations will occur. The drugs that have been developed based on the genome projects have been largely ineffective in providing long-term care and are associated with toxic effects. As long as the field continues to focus on that part of the disease, which is a downstream epiphenomenon, there will be no major advances in the field simply because that’s not the relevant aspect of the disease.”

Sugar Is the Primary Fuel for Most Cancers

Controlling your blood-glucose leptin and insulin levels through diet, exercise and emotional stress relief can be one of the most crucial components to a cancer recovery program. These factors are also crucial in order to prevent cancer in the first place.In 1931, the Nobel Prize was awarded to German researcher Dr. Otto Warburg, who discovered that cancer cells have a fundamentally different energy metabolism compared to healthy cells, and that malignant tumors tend to feed on sugar. More recently, researchers discovered that while cancer cells feed on both glucose and fructose, pancreatic tumor cells use fructose specifically to divide and proliferate.

Dr. Seyfried’s work confirms that sugar is the primary fuel for cancer, and that by restricting sugar and providing an alternate fuel, namely fat, you can dramatically reduce the rate of growth of cancer. He explains:

“When we’re dealing with glucose and [cancer] management, we know from a large number of studies that if respiration of the tumor is ineffective, in order to survive, the cells must use an alternative source of energy, which is fermentation. We know that glucose is the primary fuel for fermentation. Fermentation becomes a primary energy-generating process in the tumor cell. By targeting the fuel for that process, we then have the capability of potentially managing the disease.”

The strategy Dr. Seyfried suggests is a low-carb, low to moderate protein, high-fat diet, which will effectively lower your blood sugar. This is an easily measurable parameter that you can check using a diabetic blood glucose meter. This type of diet, called a ketogenic diet, will also elevate ketone bodies, as fat is metabolized to ketones that your body can burn in the absence of food. When combined with calorie restriction, the end result will put your body in a metabolic state that is inhospitable to cancer cells.

“[Ketones] is a fat breakdown product that can replace glucose as a major fuel for many of the organs and especially our brain,” he says.

Tumor cells, however, cannot use ketone bodies because of their respiratory insufficiency. So the ketogenic diet represents an elegant, non-toxic way to target and marginalize tumor cells. It also allows you to dramatically lower your glucose levels, as the ketones will protect your body against any hypoglycemia that might otherwise be induced by carb restriction.

“All of the newer cells in your body will be transitioned to these effective ketones, thereby preventing them from damage from hypoglycemia. At the same time, the tumor cells are now marginalized and under tremendous metabolic stress. It’s a whole body therapy—you need to bring the whole body into this metabolic state,” he explains.

“We like to call it a new state of metabolic homeostasis: a state where ketones have reached the steady state level in your blood and glucose has reached a steady lower level in your blood... If it’s done right and implemented right, it has powerful therapeutic benefits on the majority of people who suffer from various kinds of cancers. Because all cancers have primarily the same metabolic defect.” 

For Cancer Protection, Reverse Your Glucose to Ketone Ratios

Dr. Seyfried uses ketones and glucose as the measures of this new metabolic state. The parameters associated with an ideal state are ketone levels equal to or higher than the glucose level in your blood.

“There’s a high ratio of glucose to ketones. But in a fasted or therapeutic state, this ratio is actually reversed. Ketones can actually become higher than glucose,” he says. “What they can do is they can get their blood sugars down to 2.5 to 3 millimolar [equivalent to about 55-65 mg/dl], and then their ketones to up to 3 or 4 millimolar, where the ratio is now reversed. It’s this state that now brings the body into this new physiology.”

You can easily check your glucose levels at home, you’d need to work with a doctor to measure ketone levels in your blood. Generally speaking, a fasting glucose under 100 mg/dl suggests that you're not insulin resistant, while a level between 100-125 suggests you're either mildly insulin resistant or pre-diabetic. Here, Dr. Seyfried recommends getting your glucose down to a steady level of about 55-65 mg/dl, which is about HALF of what’s conventionally considered “good” or “normal.”

Blood ketones can be easily measured using the Medisense Precision Xtra blood glucose and ketone monitor from Abbot Laboratory. As many pharmacies might not stock the meter (bar code #, 93815 80347), it might be necessary to call Abbott directly (1-800-527 3339) to obtain the meter. According to Dr. Seyfried, the Precision Xtra seems the most accurate of all the ones he’s used.

It is important to mention, however, that the blood ketone strips are more expensive than the blood glucose strips. Dr. Seyfried therefore recommends measuring your blood ketones every few days rather than 3x/day for blood glucose. Although urine ketone measurement is a cheap way to assess ketones, urine ketone levels are not always indicative of blood ketone levels. It is best if you can measure ketones from both blood and urine.

“I work with nutritionists and physicians,” Dr. Seyfried says. “The problem with cancer patients is that many of the practitioners are unfamiliar with this whole approach, so there’s this tremendous gap. We have knowledge of how to do this. We have patients willing to do it. But we lack professionals that are trained or even understand the concepts of how to implement these kinds of approaches.”

All of the guidelines are included in Dr. Seyfried’s book, Cancer as Metabolic Disease, which is available on Amazon. He’s also published a couple of papers 1,2 that outline the guidelines and treatment strategies for cancer patients. One caveat to consider is your use of medications, as you need to know what the adverse effects might be if you use a medication at a particular dosage along with this kind of metabolic therapy.

The Importance of Intermittent Fasting

In my experience, the vast majority of people are adapted to burning carbs as their primary fuel, as opposed to burning fat. One of the most effective strategies I know of to become a fat burner is to restrict your eating to within a six- to eight-hour window, which means you’re fasting for about 16-18 hours each day. This upregulates the enzymes that are designed to burn fat as a fuel, and downregulates the glucose enzymes. This kind of intermittent fasting plan can be a useful modality to help you make the transition to a ketogenic diet.

“That’s the way it started in the clinic for children with epilepsy. Basically, the child is given a 24-hour and sometimes 48-hour fast – water only. And then the ketogenic diet is introduced in relatively measured and small amounts,” Dr. Seyfried says.

“Your body transitions naturally that way. Intermittent fasting is actually a very strong component of the approach. A three-day fast is uncomfortable, but it’s certainly doable. It gets your body into a new metabolic state, and then you can apply these therapies. The hardest part, I think, of this fasting is the first three to four days, depending on the individual and how many times they’ve done this.

That’s basically trying to break your addiction to glucose. The removal of glucose from the brain elicits the same kind of problems or events as you would if you were addicted to drugs, alcohol, or something like this. You get malaise, headaches, nausea, lightheadedness. You get all the kinds of physiological effects that you would get from withdrawal of any addicting substance. I look at glucose as an addictive substance. It’s an addictive metabolite. Your brain is comforted by having glucose; your body is comforted. And when you break that glucose addiction, you have these particular feelings.

... Fasting certainly has remarkable health benefits to the body: strengthening the mitochondria network system within the cells of your body. As long as the mitochondria of your cells remain healthy and functional, it’s very unlikely that cancer can develop under these particular states.”

Unless you have a very serious disease, I believe it is best for most people to implement intermittent fasting slowly over six to eight weeks rather than a three-day complete fast. You begin by not eating for three hours before you go to bed, and then gradually extend the time you eat breakfast until you have skipped breakfast entirely and your first meal of the day is at lunch time. Of course, you are only consuming non-starchy vegetables for carbs, low to moderate protein and high-quality fats. One of the things I’ve noticed is that once you’ve made the transition from burning carbs to burning fat as your primary fuel, the desire for junk foods and sugar just disappears like magic.

The Potential Role of Protein in Cancer Formation

Glutamine--one of the most common amino acids found in proteins—is another interesting aspect of cancer that Dr. Seyfried is still investigating. In his opinion, most oncologists who do cancer metabolism recognize that sugar (both glucose and fructose) is the prime fuel for driving tumor growth. However, mounting research also indicates that glucose and glutamine together act powerfully and synergistically on the growth of tumor cells.

“These two fuels work together in concert to provide a continual growth,” he says.

One of my early mentors was Dr. Ron Rosedale. He taught me, about 20 years ago, about the importance of insulin control and then, more recently, about the importance of reducing protein intake, for this very reason. Most Americans likely eat far more protein than they really need, and this excess could be a factor in cancer. The Paleo approach makes sense on many levels, especially with regards to intermittent fasting and lowering your glucose levels. The Paleo approach is very clear about reducing grains and any food that raises your blood sugar. But there are, of course, two other macronutrients left: fat and protein.

Many Paleo followers are overly concerned about getting high amounts of protein, which could increase your glutamine and branched chained amino acid levels, which in turn tend to activate mTOR. In some, that could be problematic. According to Dr. Rosedale’s research, the pathway known as the mammalian target of rapamycin (mTOR), is controlled by lowering your protein intake. This pathway may be another metabolic pathway that helps control and prevent cancer growth.

Calorie Restriction Is a Key Part of the Equation

Dr. Seyfried, however, is more cautious in his evaluation of mTOR and reducing protein for cancer prevention. In his view, the most important aspect of cancer prevention and treatment is the intermittent fasting, or overall calorie restriction, which includes eating less of everything, period. But while calories from carbohydrates should be virtually eliminated, calories from protein just need to be reduced, while most need to increase their intake of healthful fats to get a more ideal ratio of fat to protein. As far as the specific types of fats recommended, Dr. Seyfried uses medium-chain triglycerides, i.e. coconut oil, butter, macadamia nuts, and other types of saturated fats, which is what I’ve long recommended as well. “The saturated fats are converted to ketones much more readily than polyunsaturated fats,” he explains.

So, keep in mind that for cancer prevention and treatment, the actual calorie restriction is an important part of the equation:

“We did some studies on this with our model of glioma... The mTOR in our model was not dramatically changed by these metabolic therapies. But I know others have reported it, and this could be an important component for certain other kinds of cancers. But my limited work with this did not demonstrate this to be a major issue, at least in the glioma model that we looked at. We showed that you could give animals a high-fat, low-protein diet, as much as they want (zero carbs in this diet), and their blood glucose was just as high or higher than the mice that were eating the protein-carb diet.

It was more or less related to the total consumption of calories. Most calories boil down to glucose. Proteins will be metabolized to glucose. Carbs are metabolized to glucose; fats are not... We don’t get any therapeutic benefit either in epilepsy or cancer when we allow the animals or people to eat as much of these high-fat diets as they want. We get no therapeutic benefit.

Therapeutic benefit comes from the restriction of the calories in the diet. The ketogenic diet or a low-carb, low-protein diet is simply a way to take the sting out of a therapeutic fast. Because as long as the glucose and ketones can get into the metabolic range (and you can do it with eating small amounts of a high-fat diet rather than therapeutic fasting), then that just makes people feel a little better about how they’re doing this rather than feeling that I’m starving to death.”

Hyperbaric Oxygen Therapy

I recently interviewed Dr. D’Agostino who is another cancer as a metabolic disease researcher. He published a recent paper3 that shows a phenomenal synergy with a ketogenic diet and the use of hyperbaric oxygen for cancers that have metastasized. These types of cancers are notoriously difficult to treat. I would strongly encourage anyone struggling with this challenge to consider this type of therapy.

More Information

From my perspective, it’s nothing short of medical malpractice and negligence to fail to integrate this type of dietary strategy into a patient’s cancer treatment plan (along with optimizing vitamin D). A ketogenic diet along with intermittent fasting can be easily integrated into whatever cancer treatment plan you decide to follow. Personally, I believe it’s absolutely crucial, no matter what type of cancer you’re trying to address.

That said, remember that a ketogenic diet, in which you replace carbs with low to moderate amounts of protein and high amounts of beneficial fat, like avocado, coconut oil, butter, olive oil and macadamia nuts is recommended for everyone, whether you have cancer or not. It’s a diet that will help optimize your weight and health overall, as eating this way will help you convert from carb burning mode, to fat burning.

To get more specifics about using a ketogenic diet and calorie restriction for the treatment of cancer, I highly recommend picking up Dr. Seyfried’s book, Cancer as a Metabolic Disease. You can also review his papers,4,5 which outline the guidelines and treatment strategies for cancer patients. If you’re a cancer patient, I’d recommend printing them out for your oncologist.

He also has a Facebook page6 for his book, and a website connected to the Boston College Biology Department7 where you can get more information about his work.





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