Dr. Mercola attacks the China Study: clash of the titans
When Joe Mercola contradicts the basics of nutrition taught on GreenSmoothieGirl.com and in my books, we get hundreds of emails.
Mercola’s newsletter yesterday supposedly exposes the “DARK SIDE” of the China Study. I’m not going to link to it and therefore give it a higher page rank. It doesn’t deserve it.
Before undertaking to explain what’s radically wrong with this article, let me say this: I agree with Mercola on some macro issues:
- That prevention and natural remedies are the best first-line treatments, rather than drug/surgery medical interventions.
- That far too much of our data comes from research that drug companies and agribusiness paid for.
- That sugar and processed foods are killing us. (Mercola implies, with the “false dilemma” logical fallacy, in yesterday’s newsletter that either animal proteins are killing us, or processed foods are, as if they are mutually exclusive.)
But we must use critical thinking skills to expose fatal flaws in his comments about Dr. T. Colin Campbell and the China Study.
(When you put yourself in the public domain, you invite dissent. Juxtaposition of ideas creates a climate for the truth to emerge.)
As I strongly disagree with Mercola here, I will invariably get some angry email. Most readers will appreciate that my only motive is to learn and then explain the truth (or as close as I can get to it) in this world of nutrition that has so many competing voices.
My own 12 Steps to Whole Foods is a compendium of the best nutrition practices. It advocates for eating much more plant food (especially raw food) than the average American gets and is a practical HOW-TO guide, more than a philosophical debate or meta-review of research. It purposefully doesn’t advocate for vegetarianism or veganism, although I am supportive of others who choose to wear those labels. My own family, except for two vegetarian daughters, eats a bit of homemade kefir, and occasional animal products when we are away from home.
Mercola attempts to discredit the joint effort of Oxford and Cornell Universities by calling theirs an “observational” study, which he infers is somehow inferior to having once had a medical practice.
The Oxford/Cornell China study is a very sound, huge, comprehensive study spanning over 25 years. My own advanced degree, background in research, and understanding of research principles, lead me to say this:
I am thankful, finally, for a vast piece of research in epidemiology that was not funded or influenced by the drug companies or agribusiness (which primarily hawks refined corn/wheat/soy products and processed and refined and GMO foods). I see no conflicts of interest in the Oxford/Cornell research. I see one of the purest voices in nutrition in Campbell and his team.
I interviewed him by phone as I wrote this, and he said, “I feel personally responsible to Americans to tell them what we did with their money,” because taxpayers funded the China study, not profit-motivated industries.
The research was the next natural step from methodical and rigorous animal studies. It’s a remarkable piece of research examining 6,500 adults in 130 villages of rural China where some populations eat lots of animal protein, and others eat very little. The book The China Study represents the totality of Campbell’s experiences. Those include his many years of work in the Philippines studying malnourished children, to his experimental lab research funded by the National Institutes of Health, to the human studies project in China.
Mercola refers to Campbell “forcing” everyone into vegetarianism. This makes no sense on two levels beyond the unilateral emotionalism of the word.
First, the two diets Campbell studied were 20% animal protein (which correlates to the Standard American Diet) and 5% animal protein. Neither groups studied were vegetarian. The 5% group correlates to a low-animal-protein diet, similar to Daniel’s Biblical diet, as well as the scriptural “Word of Wisdom” counsel to eat meat “sparingly, only in times of winter/famine/cold.”
Second, Campbell takes the tone of scientist. He reports and interprets the data. He doesn’t “force” or even recommend any specific diet. He allows the reader to infer from the data whatever diet they choose to follow. He isn’t an internet maven selling a philosophy; he’s a researcher who found the opposite of what he expected to. He grew up on a dairy cattle farm and thought, well into adulthood, that a high-protein diet was ideal. Like John Robbins, son of the Baskin Robbins founder, only data convinced him otherwise. I personally am thankful for honest and pure truth seekers, willing to turn another way, when data challenges popular culture and custom.
Mercola attempts to downgrade the massive China project as “an observational study,” which he says does not “prove causation.” This is puzzling to me based on a three logic flaws.
First, Campbell is a scientist and would never say his study “proves causation.” No scientist would. I’m not a scientist but know enough about it to be aware you never achieve or claim “proof of causation.” Mercola gives a two-sentence primer on how the scientific process works: initial study, hypothesis, controlled trial. Which is precisely what Campbell and the research team did: