iPhone app iPad app Android phone app Android tablet app More

Featuring fresh takes and real-time analysis from HuffPost's signature lineup of contributors
Kathy Freston

GET UPDATES FROM Kathy Freston
 

A Cure For Cancer? Eating A Plant-Based Diet

Posted: 09/24/09 09:34 AM ET

I have been working closely recently with a few extraordinary nutritional researchers, and I find that the information they have compiled is quite eye opening. Interestingly, what these highly esteemed doctors are saying is just beginning to be understood and accepted, perhaps because what they are saying does not conveniently fit in with or support the multi-billion dollar food industries that profit from our "not knowing". One thing is for sure: we are getting sicker and more obese than our health care system can handle, and the conventional methods of dealing with disease often have harmful side effects and are ineffective for some patients.

As it is now, one out of every two of us will get cancer or heart disease and die from it - an ugly and painful death as anyone who has witnessed it can attest. And starting in the year 2000, one out of every three children who are born after that year will develop diabetes--a disease that for most sufferers (those with Type 2 diabetes) is largely preventable with lifestyle changes. This is a rapidly emerging crisis, the seriousness of which I'm not sure we have yet recognized. The good news is, the means to prevent and heal disease seems to be right in front of us; it's in our food. Quite frankly, our food choices can either kill us - which mounting studies say that they are, or they can lift us right out of the disease process and into soaring health.

In the next few months, I will share a series of interviews I've conducted with the preeminent doctors and nutritional researchers in the fields of their respective expertise. And here it is straight out: they are all saying the same thing in different ways and through multiple and varying studies: animal protein seems to greatly contribute to diseases of nearly every type; and a plant-based diet is not only good for our health, but it's also curative of the very serious diseases we face .


Cancer

On the subject of cancer, I've asked Dr. T. Colin Campbell, Professor Emeritus of Cornell University and author of the groundbreaking The China Study to explain how cancer happens and what we can do to prevent and reverse it. Dr. Campbell's work is regarded by many as the definitive epidemiological examination of the relationship between diet and disease. He has received more than 70 grant years of peer-reviewed research funding, much of which was funded by the U.S. National Institutes of Health (NIH), and he has authored more than 300 research papers. He grew up on a dairy farm believing in the great health value of animal protein in the American diet and set out in his career to investigate how to produce more and better animal protein. Troublesome to his preconceived hypothesis of the goodness of dairy, Dr. Campbell kept running up against results that consistently proved an emerging and comprehensive truth: that animal protein is disastrous to human health.

Through a variety of experimental study designs, epidemiological evidence, along with observation of real life conditions which had rational biological explanation, Dr. Campbell has made a direct and powerful correlation between cancer (and other diseases and illnesses) and animal protein. Following is a conversation I had with him so that I could better understand the association.


KF: What happens in the body when cancer develops? What is the actual process?

TCC: Cancer generally develops over a long period of time, divided into 3 stages, initiation, promotion and progression.

Initiation occurs when chemicals or other agents attack the genes of normal cells to produce genetically modified cells capable of eventually causing cancer. The body generally repairs most such damage but if the cell reproduces itself before it is repaired, its new (daughter) cell retains this genetic damage. This process may occur within minutes and, to some extent, is thought to be occurring most of the time in most of our tissues.

Promotion occurs when the initiated cells continue to replicate themselves and grow into cell masses that eventually will be diagnosed. This is a long growth phase occurring over months or years and is known to be reversible.

Progression
occurs when the growing cancer masses invade neighboring tissues and/or break away from the tissue of origin (metastasis) and travel to distant tissues when they are capable of growing independently at which point they are considered to be malignant.

KF: Why do some people get cancer, and other don't? What percentage is genetic, and what percentage has to do with diet?

TCC: Although the initiated cells are not considered to be reversible, the cells growing through the promotion stage are usually considered to be reversible, a very exciting concept. This is the stage that especially responds to nutritional factors. For example, the nutrients from animal based foods, especially the protein, promote the development of the cancer whereas the nutrients from plant-based foods, especially the antioxidants, reverse the promotion stage. This is a very promising observation because cancer proceeds forward or backward as a function of the balance of promoting and anti-promoting factors found in the diet, thus consuming anti-promoting plant-based foods tend to keep the cancer from going forward, perhaps even reversing the promotion. The difference between individuals is almost entirely related to their diet and lifestyle practices.

Although all cancer and other diseases begin with genes, this is not the reason whether or not the disease actually appears. If people do the right thing during the promotion stage, perhaps even during the progression stage, cancer will not appear and if it does, might even be resolved. Most estimates suggest that not more than 2-3 percent of cancers are due entirely to genes; almost all the rest is due to diet and lifestyle factors. Consuming plant based foods offers the best hope of avoiding cancer, perhaps even reversing cancer once it is diagnosed. Believing that cancer is attributed to genes is a fatalistic idea but believing that cancer can be controlled by nutrition is a far more hopeful idea.


KF: You said that initially something attacks the genes, chemicals or other agents; like what?

TCC: Cancer, like every other biological event--good or bad--begins with genes. In the case of cancer, gene(s) that give rise to cancer either may be present when we are born or, during our lifetimes, normal genes may be converted into cancer genes by certain highly reactive chemicals (i.e., carcinogens).

Consider 'cancer genes' as seeds that grow into tumor masses only if they are 'fed'. The 'feeding' comes from wrongful nutrition. It's like growing a lawn. We plant seeds but they don't grow into grass (or weeds) unless they are provided water, sunlight and nutrients. So it is with cancer. In reality, we are planting seeds all of our lifetime although some may be present at birth, not only for cancer but also for other events as well. But this mostly does not matter unless we 'nourish' their growth.

The chemicals that create these cancer genes are called 'carcinogens'. Most carcinogens of years past have been those that attack normal genes to give cancer genes. These are initiating carcinogens, or initiators. But more recently, carcinogens also may be those that promote cancer growth. They are promoting carcinogens, or promoters.

Our work showed that casein is the most relevant cancer promoter ever discovered.

Aside from chemicals initiating or promoting cancer, other agents such as cosmic rays (energetic particles) from the sun or from the outer reaches of space may impact our genes to cause them to change (i.e., mutate) so that they could give rise to cancer 'seeds'. The most important point to consider is that we cannot do much about preventing initiation but we can do a lot about preventing promotion. The initiating idea is fatalistic and outside of our control but the promotion idea is hopeful because we can change our exposure to promoting agents and reverse the cancer process, thus is within our control.

KF: What exactly is so bad about animal protein?

TCC: I don't choose the word "exactly" because it suggests something very specific. Rather, casein causes a broad spectrum of adverse effects.

Among other fundamental effects, it makes the body more acidic, alters the mix of hormones and modifies important enzyme activities, each of which can cause a broad array of more specific effects. One of these effects is its ability to promote cancer growth (by operating on key enzyme systems, by increasing hormone growth factors and by modifying the tissue acidity). Another is its ability to increase blood cholesterol (by modifying enzyme activities) and to enhance atherogenesis, which is the early stage of cardiovascular disease.

And finally, although these are casein-specific effects, it should be noted that other animal-based proteins are likely to have the same effect as casein.


KF: Ok, so I am clear that it's wise to avoid casein, which is intrinsic in dairy (milk and cheese), but how is other animal protein, such as chicken, steak, or pork, implicated in the cause and growth of cancer?

TCC: I would first say that casein is not just "intrinsic" but IS THE MAIN PROTEIN OF COW MILK, REPRESENTING ABOUT 87% OF THE MILK PROTEIN.

The biochemical systems which underlie the adverse effects of casein are also common to other animal-based proteins. Also, the amino acid composition of casein, which is the characteristic primarily responsible for its property, is similar to most other animal-based proteins. They all have what we call high 'biological value', in comparison, for example, with plant-based proteins, which is why animal protein promotes cancer growth and plant protein doesn't.


KF: Isn't anything in moderation ok, as long as we don't overdo it?

TCC: I rather like the expression told by my friend, Caldwell Esselstyn, Jr., MD, the Cleveland Clinic surgeon who reversed heart disease and who says, "Moderation kills!" I prefer to go the whole way, not because we have fool-proof evidence showing that 100% is better than, say, 95% for every single person for every single condition but that it is easier to avoid straying off on an excursion that too often becomes a slippery slope back to our old ways. Moreover, going the whole way allows us to adapt to new unrealized tastes and to rid ourselves of some old addictions. And finally, moderation often means very different things for different people.

KF: Are you saying that if one changes their diet from animal based protein to plant-based protein that the disease process of cancer can be halted and reversed?

TCC: Yes, this is what our experimental research shows. I also have become aware of many anecdotal claims by people who have said that their switch to a plant-based diet stopped even reversed (cured?) their disease. One study on melanoma has been published in the peer-reviewed literature that shows convincing evidence that cancer progression is substantially halted with this diet.


KF: How long does it take to see changes?

TCC: It is not clear because carefully designed research in humans has not been done. However, we demonstrated and published findings showing that experimental progression of disease is at least suspended, even reversed, when tumors are clearly present.


KF: Consider a person who has been eating poorly his whole life; is there still hope that a dietary change can make a big difference? Or is everything already in motion?

TCC: Yes, a variety of evidence shows that cancers and non-cancers alike can be stopped even after consuming a poor diet earlier in life. This effect is equivalent to treatment, a very exciting concept.


KF: This is sounding like it's a cure for cancer; is that the case?

TCC: Yes. The problem in this area of medicine is that traditional doctors are so focused on the use of targeted therapies (chemo, surgery, radiation) that they refuse to even acknowledge the use of therapies like nutrition and are loathe to even want to do proper research in this area. So, in spite of the considerable evidence--theoretical and practical--to support a beneficial nutritional effect, every effort will be made to discredit it. It's a self-serving motive.

KF: What else do you recommend one does to avoid, stop, or reverse cancer?

TCC: A good diet, when coupled with other health promoting activities like exercise, adequate fresh air and sunlight, good water and sleep, will be more beneficial. The whole is greater than the sum of its parts.


For help on how to lean into a plant based diet, check out my blog post here; and for recipes click here.

For more information about diet and cancer, visit tcolincampbell.org.

 
 
 
I have been working closely recently with a few extraordinary nutritional researchers, and I find that the information they have compiled is quite eye opening. Interestingly, what these highly esteem...
I have been working closely recently with a few extraordinary nutritional researchers, and I find that the information they have compiled is quite eye opening. Interestingly, what these highly esteem...
 
 
  • Comments
  • 485
  • Pending Comments
  • 0
  • View FAQ
Comments are closed for this entry
View All
Favorites
Bloggers
Recency  | 
Popularity
Page: 1 2 3 4 5  Next ›  Last »  (12 total)
04:04 PM on 11/06/2009
I’m a breast cancer survivor and thriver. Just found this DVD that features Kathy Freston called “The Path of Wellness & Healing” at a conference and it’s the best resource i have EVER seen for anyone with breast cancer or their families. My husband was given SO MANY BOOKS and who has the time to read when you’re dealing with something like this? This DVD was a one-stop shop that walks you through the entire bc experience with celeb survivors like Sheryl Crow and Christina Applegate and the world’s greatest doctors like Deepak Chopra and Dean Ornish. You’ll learn, you’l be inspired, you’ll probably cry and you might even laugh! Check it out!!! http://breastcancerdvd.org.
01:46 AM on 11/07/2009
That 3 minute video has many famous people on it. Everyone should watch it. Then it gives you access to other related videos that you cannot find elsewhere. Here is a University of California video about cancer and vitamin D. It shows that the latest research demonstrates that vitamin D can greatly reduce cancer rates including breast cancer. If enough people watch this video, it can greatly reduce the cancer that exists.

It shows that the amounts of vitamin D needed to greatly reduce your chance of getting cancer is much more than the amount needed to prevent rickets or bone problems. It also tells how to find out just how much you need. It also has side effect of lowering your chances of getting the flu. You can even get free vitamin D from sunlight.
http://www.youtube.com/watch?v=TQ-qekFoi-o&feature=player_embedded#
07:31 PM on 10/30/2009
I respectively disagree with your article. A ketogenic diet has been shown to be healthier than starving yourself on plant leaves and flaxseeds. My dad was diagnosed with stage 1 colon cancer and did the Budwig Protocol without orthodox treatments and was dead in a year. I believe the war on cancer by the establishment is a joke, there are effective cancer treatments other than chemo and radiation, (Ronald Reagan was a good example). You should avoid sugars as well when diagnosed with cancer. I also believe many of these natural cure websites are ran by left-wing extremists with pro-animal, anti-corporation agendas(except when they make money of course). Ancient people, native tribes, eskimos were all fish and meat eaters(omnivores). According to the quacks you should only eat raw fruits and vegetables, nothing else! Meat and fish with fruits and vegetables is healthy with exercise. Increased chemicals in foods, water, meats, shampoos, ect i beleive are the real culprits in rising cancer rates. These alternative quacks make big money themselves with their water ionizers, supplements, ect. Be careful of these plant-based diet claims, some of these treatments have only 5% cure rates. Many alternative claims contradict each other if you study them.
09:25 AM on 11/04/2009
Your father dying while using an alternative cure means as much as one person being cured by an alternative cure. They both mean nothing except to make you prejudiced against alternative medicine. For example if a fat person killed my father, then I may become prejudiced against fat people. The Eskimos have an average life span of only 60 years.

John Hopkins Medical School says that cancer is a disease of many factors. They have broccoli sprouts in food stores that they have patented by making them extra high in sulforophane-- a cacner fighting phytochemical. Their Brassica Foundation is studying plants to use for cures for cancer and other diseases. As far as many factors, that means the pollution from the air, the pollution in your house and many other things can affect cancer. For example someone who does not smoke can get lung cancer from second hand smoke. http://www.graviolaleaves.com There is a University of California video on youtube about cancer and vitamin D. It show that vitamin D is very effective at preventing cancer according to recent studies.
02:41 PM on 11/04/2009
You didn't pay attention to my article, i'm not against alternative cures. I said the governments war on cancer is a joke. The reason for my post is to expose the people and websites behind this vegetarian movement being pushed down our throats. Many studies contradict other studies. Vegans will say things that are true and leave out many other things that are true that don't support what they say. I rarely see omnivores attacking vegetarians, it is always the other way around. If your way is so great why are many types of cancers and other illnesses more common with vegetarians. Why do vegetarians still make up about 35% of all cancer diagnosis' even though there are fewer of them in society? The omnivores with the "cancer rates", yous' don't consider other lifestyle factors that i'm sure contribute to them getting various ailments. This vegetarian agenda is about a much broader agenda to push their extremist left-wing agenda and to eventually restrict what we eat, to ban guns and hunting, and their anti-capitalist agenda.
10:08 AM on 10/28/2009
I'm living and thriving proof that this "theory" has merit. In Feb. of this year I was diagnosed with STAGE IV IDC breast cancer: multiple tumors in my right breast, multiple tumors in the lymph nodes of my right arm pit, multiple tumors behind my sternum and a large cancerous mass in the bone of my sternum.
I began eating mostly fruits & veggies in March of this year and as of my latest PET scan in August, the mass in the bone of my sternum is GONE, the tumors behind my sternum are gone and I'm down to a single much reduced tumor in my right breast and a single much reduced tumor in my right arm pit!
I have had no chemo, radiation or other chemical treatment. I am proud to say that we are ALL capable of curing our own disease... with information! Thanks to the author for spreading this life saving news.

KCB / Fayetteville, Georgia
06:53 PM on 10/12/2009
I have just been browsing through the 476 comments on this article and I find that the level of misunderstood, misinterpreted comment alarming. It is clear to me that most folks really do not have any basic grounding in science.

Campbell's work in the 1980s - BEFORE he emabrked on the China study showed that the major protein in cow's milk - CASEIN - is a promoter of cancer! Its is NOT a carcinogen in its own right.

Then there was a thread about Kefir ( a fermented milk product and one of many from the Balkans and Eastern Europe). Somehow the writer has got the idea that casein is OK after all - its in Kefir and the longevity of people in the Balkans shows its OK.

A quick Google Scholar seacrch will get you to the research. Casein is digested by the bacteria in kefir.

Go back and read Cambpells book. Get your science correct!
08:10 AM on 10/11/2009
I have read and re-read Campbell's book. Now I have started on the crits. I am hardly surprised at the crits - Campbell is reporting on stuff that is controversial to say the very least.

I do not intend to comment on his credibility nor on the crits but offer this.

We evolved as hunter gatherers and as such we would have eaten a diet that contained the occasional meat, nuts, berries, fruit and any other plant based material found ( by trial and error) to be non-toxic. This would have gone on for millenia. I venture to suggest that at no time along this pathway did we consume such large quantities of milk other than that delivered via breast feeding.
If cow's milk casein is playing an unwanted role in cancer it might well be because of its "recent" appearance in our diet.
01:09 AM on 09/29/2009
(I'm not a Seventh Day Adventist - but I do find them useful as a lifestyle study subgroup compared to the general population). One article claims SVA's live to an average age of 88: here is a press story: http://www.chicagotribune.com/topic/sns-health-aging-centenarians,0,3009292.story?track=rss-topicgallery.
That is a 28 year difference compared to the 80% meat/fat diet Inuit. By the way, I do work in the health field serving the native "Indian" population. My experience tells me some significant changes need to be made in their diet and lifestyle - of great concern is the incredible epidemic in obesity related type II diabetes (reaching 80-100% of the adult population in some tribes), significant problems with heart disease, and in the increased rate of cancer compared to the general population. The natives of today do not look at all the same as their elders in the old turn of the century black and white photographs!
Here is another link on a 2001 study: http://lifetwo.com/production/node/20070107-longevity-seventh-day-adventists-life-expectancy
Note on the above study - the life expectancy comparing vegetarian SVA vs. non-vegetarian SVA's. The difference is minimal based on diet, although statistically significant...2-2.5 years. Other lifestyle differences have the greater impact (9 years or so) - controlled weight vs. obesity, daily exercise or not, smoking history, and a daily bowl of nuts (LOL).
photo
HUFFPOST SUPER USER
Chuck Bluestein
Always searching for latest health breakthrough
06:11 PM on 09/28/2009
Thousands of studies show that fruit and vegetables prevent cancer. No study showed that with meat. There was no mention of the 500,000 people study that showed that meat causes cancer.
http://www.cnn.com/2009/HEALTH/03/23/healthmag.red.meat.lifespan/index.html
08:34 PM on 09/28/2009
Do you know what it means to isolate a variable? That study doesn't isolate the variable at all. It simply lumps everyone together based on meat consumption. Gee, you think there is a chance that the people who ate the most bacon and sausage ALSO ate lots of other crappy foods, and probably didn't eat a lot of vegetables and fruits, and probably ate in caloric excess? That study is completely meaningless. All it tells us is what we already know: that eating McDonalds instead of whole foods is bad for you.

All these nonsense, anti-meat studies have a fatal flaw. They all rely on the false assumption that people with either eat lots of meat and no vegetables, or no meat and lots of vegetables.

The best diet to prevent disease and avoid obesity is lean meat, lots of vegetables, and whole grains. The worst diet is processed garbage and American fast food. Most "plant based" diets fall somewhere in between.
photo
HUFFPOST SUPER USER
Chuck Bluestein
Always searching for latest health breakthrough
05:53 PM on 09/30/2009
That study was done by the National Cancer Institute (NCI) that is one of the 27 National Institutes of Health (NIH). So I do know what it means to isolate one variable. This study cost a great deal of money and was with half a billion people. Just kidding. It was only with half a million people.

Right after it was done, it was all over the TV news. So you are saying that you are right and they are wrong. Well actually on this post, I started a thread (I am GINKGO on it) that complained about the same thing and said that if you change more than one variable then you do not know what caused the change.

Now I had many people disagree with me, as you can see by looking at it. So what did I do? I gave them website after website after website that explained that exact thing-- called the scientific method.
http://www.stevepavlina.com/forums/health-fitness/33137-most-health-problems-caused-lack-intelligence.html

But then there are no phytochemicals in animal foods whereas plant foods contain thousands of phytochemicals like resveratrol (in dark grapes), lycopene (in tomatoes and watermelon) and sulphoropahane that is in broccoli sprouts. They have already identified over 900 phytochemicals, but who is counting?
05:02 PM on 09/28/2009
Intellectually dishonest and simplistic article obviously targeted towards petty bourgeois, knee-jerk hippie readers who watch Oprah and shop at Whole Foods. Since Preston has written a book about "cleansing" (one of the biggest buzzwords in new age nonsense), this isn't surprising.

Nowhere in the article does Preston acknowledge that Campbell's work has been widely criticized, or that his data barely matches up with his pronouncements. Nowhere do they mention that whey protein has been shown to have a protective effect, which throws his generalizations into question. And nowhere does she address the fact, documented by countless anthropologists, that indigenous hunter-gatherer societies like the Alaskan Inuit (who consumed a diet almost wholly comprised of animal protein, with 80% of calories coming from fat) had microscopic rates of cancer and heart disease.

The American diet is deeply flawed, but it's not because of animal protein. If your diet consists mainly of lean meat, vegetables, and whole grains, and you are not eating in caloric excess, you are not at high risk for cancer or heart disease. To equate someone who eats chicken breasts and broccoli with someone who devours Big Macs on a regular basis is just plain intellectually dishonest.
01:08 AM on 09/29/2009
The incidence of diagnosed Cancer, Diabetes type II, and Cardiovascular disease increases with age, statistically accelerating after the 5th decade of life. The average lifespan of the Inuit population group is sixty, which is significantly eight years less than the Canadian average. So, those who think the Inuit are doing something right...you might want to rethink this.
Here is a link - posting current dietary/lifesytle gov guidelines in the prevention of the above:
http://www.guideline.gov/summary/summary.aspx?ss=15&doc_id=5620&nbr=3790
04:17 PM on 09/28/2009
HEY – read this!
For the past 1.5 years or so I have inadvertently used myself as somewhat of a test bed that has pitted the low fat, plant based (high carbohydrate) diet against the Atkins, low carb, lifestyle. I say “lifestyle” because it is not a diet. I didn’t need to loose weight I was just concerned about high cholesterol.

I first bought the China study as well as Dr. Caldwell Esselstyn’s book and followed them religiously for about 8 months. Everything was low fat (or non fat) plant based and absolutely no meat or dairy or even fish.

Well after 8 months, I came down with Type 1 Diabetes! The carb load was so great that my pancrease crapped out on me. There are new studies now (google them) noting that a low fat diet equates to a high carb diet and that often ends up in Diabetes. My sugar levels were off the chart. I felt like suing Dr. Esselstyn and Campbell.

I quickly droped the diet and Bought Dr. Bernsteins book about Diabeties. His approach was more or less that of Atkins or the Edeas’ Protein Power.

My sugar levels were quickly brought down and in line with a “normal” non diabetic and what’s better – my cholesterol improved dramatically – go figure!

I will never go back to “low fat” plant based. Basically it is pretty simple: my body now burns fat (yes bacon fat) instead of sugar (from bread).

Interveiw Gary Taubes...please!
11:56 PM on 09/28/2009
Yes you have to have adequate fat in your diet or you will overload your pancreas. I did this to myself for years. I now understand that I need to eat meat WITH some animal fats to help regulate my blood sugar, while limiting white starches like rice and potatoes (I`m learning to use them more as a garnish than as a third or more of the meal), plus as many fruit and vegetables as my body tells me it wants when it has neither low nor high blood sugar. I had to work this out for myself. No doctor helped.
HUFFPOST SUPER USER
rnm
10:34 PM on 10/04/2009
Really sorry that you got diabetes, but OMG-- wahtever else was going on with you and how you got it has absolutely nothing to do with what you are proposing here.

Please go do some very careful research on all of this because you are speaking out of complete ignorance on a plant based diet. TOTAL IGNORANCE....
03:18 PM on 09/28/2009
This article doesn't point to any real evidence that casein causes cancer. It simply claims over and over again that there is overwhelming evidence. What journal are these findings published in?
photo
HUFFPOST SUPER USER
YeWight
01:12 PM on 09/28/2009
China Study is old news and had undergone serious scientific scrutiny over the years, placing in doubt many of its conclusions. The study, nevertheless, had an interesting approach and design, but many flaws. You can research the subject for yourself, but here's just one article to tickle your fancy:

http://www.babushkaskefir.com.au/historyofkefir.html

The above is something that radically contradicts China Study casein claims. People in the Caucasus mountains are known to be some of the healthiest, longest living on the planet. The problem is - their diet is heavily based on a dairy product (kefir), which according to the China Study is bound to kill you (prematurely). Go figure.

What will more than likely determine your future is in your genes, not so much in your diet. I have several nonagenarians in the family whose diet had always been heavy on dairy and meat and who happen to live long and healthy lives. And they are not an isolated example. Over the years, I have come across a number of families and individuals with similar histories and similar outcomes.
12:25 PM on 09/28/2009
Protein (or the more specific cacein) has a profound effect on cancer in our society because we consume so much of it. The average American consumes far more protein than required to meet our daily nutritional requirements (as much as 3 to 4 times as much in certain parts of the country). Protein is essentially for muscle growth, however the level or protein intake for Americans suggest we are all body builders, which we are not. Therefore, the excess protein in our diet becomes stored, primarily as fat, as our bodies are not able to use it all for growth. As cancer cells mutate, they require fuel to grow and expand. Eating the amount of meat we do, all of the excess fuel in our bodies provides a volatile situation for the growth of cancer. All of this is complicated exponentially by the use of hormones and the improper feeding of animal protein to our livestock, which pollutes a vast amount of meat and dairy products in the United States. A vegetarian diet provides the proper daily nutritional intake, as well as decreasing the risk of cancer by eliminating the fuel for its growth.
11:27 AM on 09/28/2009
I read Professor T. Colin Campbell's book, The China Study, and his data on animal protein and cancer. While the link between casein and cancer seemed fairly well established, it seemed like much more of a leap to conclude that all animal protein causes or promotes cancer and there seemed to be little scientific support for this broader conclusion. Granted, some data on processed meats supports an increased cancer risk, but that might be explained by the nitrites and processing.

There is a little known self published book written by DeLamar Gibbons, MD, who practiced medicine in the Four Corners Region on the Navajo Reservation for many decades. The book is entitled, Their Secrets: Why the Navaho Indians Never Get Cancer. Gibbons insisted that he had reviewed the records of 25,000 admissions to the Monument Valley Hospital and several other hospitals as well in outlying communities for the decades in question and had not found a single instance of a Navajo who practiced traditional taboos ever getting cancer of any kind. Gibbons sought to explore the differences that might account for the negligible cancer rates in traditional living Navajos. He found that dairy products were avoided. But grassfed meat was eaten in abundance, especially lamb and mutton. And grassfed meat is very high in conjugated linoleoic acid (CLA), which inhibits development and growth of cancer. In any event, the Navajos in question had anything but a vegan or vegetarian diet.
photo
HUFFPOST SUPER USER
simplify
12:17 PM on 09/28/2009
Meat eaters will often find some justification for its consumption.
05:24 PM on 09/28/2009
I agree... Meat eaters seem to be the most concerned about what other people are eating... Since I've became a vegetarian you wouldn't believe the amount of backlash I have received from meat eaters about my eating choices.. People eat meat around me all the time and I don't criticize them..
09:51 AM on 09/28/2009
Our culture promotes easy access to calories, sedentary lifestyle, high fat dietary choices which are counter to our past million years of evolution and I believe we are suffering from this disparity. We have a coming disaster approaching us at one generation speed...a huge diabetes/obesity epidemic that will cost us billions of dollars to "doctor" without preventing/curing - out of the 1/3 children predicted to "go" type II diabetic, a sizable percentage will need dialysis 3x weekly as adults to survive! This is a billions dollar proposition, so something is going to have to change - we can't go down that road, folks.
It was assumed (once) that the developement of agriculture in human society was a positive development leading towards increased health/longevity in the population...that assumption has been proved false...the roaming hunter/gather lifestyle has been proven to be better. Homo S. once had to be extremely active in order to survive...we were lean, mean, fighting machines...now we pack ourselves into a suv, drive to Walmart, walk around with a shipping cart, fill it to the brim, pack it home, and pack it in...while we sit front side to a tv/computer.
Having said this, going out to my greenhouse for some fresh tomatoes, basil, and swiss chard....and it's time for me to go out for a long walk and pick up some wild pine nuts....and a brown trout or two...
Good luck my fellow primates!
09:49 AM on 09/28/2009
There have been interesting nutritional/life style studies done working with mainland native americans, who presently suffer high rates of diabetes, heart disease, and obesity on our "modern world diet". When they have returned to their traditional diet/food gathering lifestyle = fewer calories, greater activity, less saturated fat ....basically pinenuts, seed grass, wild plants, minimal wild lean meat etc. there has been a statistically significant drop in signs of disease processes compared to their "modern lifestyle compatriots". What we have going on is far more complex than simply meat vs. vegan diets, although I think meat/dairy based diets have significant health issues. I would propose that the healthiest diet would be omnivorous tilted towards plants/seeds w/minimal amount of lean wild grown meat and minimal dairy - as close to possible to our 1 million year old natural diet that we are biologically adapted for (take away the extremes of Inuit/Alaskan native artic tundra). Noted are these human phys characteristics - relatively small jaw w/ small caninines, plant/seed grinding molars (not shearing molars as in predatory meat eating animals), a small stomach w/moderate ph acid & a long intestinal tract designed for extracting optimum amount of nutrition (calories) from plant based foods.