As much as I hate posting entries that aren’t twelve pages long and jazzed up with graphs, I’m becoming plagued with blog-related nightmares about my chronic lack of updates—so here’s a peek at what to expect really soon. All may seem calm on the Raw Food SOS front, but three things are brewing behind the recent curtain of silence:
1. The “is wheat going to give you a heart attack?” post. I’m sure my delay-apologies are bordering on parody at this point, but here’s another one anyway: Sorry it’s taking so long! I’ve been trying to get in touch with some researchers who’ve done relevant wheat/gluten/WGA work, but it seems many of them take even longer to respond to emails than I do. (I have tasted my own medicine, and it is bitter.) Nonetheless, expect to see this sucker finally up by next weekend—I’ll post whatever I’ve finished, even if it needs to become a two-parter.
2. A ridiculously huge review of every single vegan study in existence (or close to it). Even though some prominent vegan nutritionists concede that “no one has shown that you must eat a 100 percent plant diet in order to be healthy,” the vegan-versus-omnivore debate is probably never going to die. (Which is kind of a good thing—what else would we have to argue about?) So I’m compiling an analysis of all the current vegan research, including reviews of study design and evaluations of how well confounders were accounted for. I think this is a worthwhile project because:
- As Harriet Hall of Science-Based Medicine recently pointed out, some of the oft-cited studies supporting veganism for disease reversal are either uncontrolled (like Esselstyn) or tangled up with variables like exercise and stress reduction (like Ornish). And other studies sometimes credit veganism for health improvements despite having eliminated more than just animal foods—such as this one that concludes a “vegan diet had beneficial effects on fibromyalgia symptoms,” even though the diet in question was also devoid of grains, sugar, seed oils, and processed fare.
- I want to see whether most vegan research is really looking at the effects of diet or if it’s reflecting other (unadjusted for) health behaviors. For instance, a recent Polish study took a hard look at the lifestyle differences between vegans, vegetarians, and omnivores, and the (not surprising) conclusion was that meat-avoiders “present a higher level of caring about their health” than standard omnivores—a reality that makes it difficult to separate the effects of diet versus other pro-health behaviors in research focused on vegans or vegetarians. According to this study, 75% of vegans abstain from alcohol (versus 8% of those on a traditional diet), and only 6% of vegans use tobacco products (versus 33% for standard omnis). Vegans and vegetarians are also significantly more likely to exercise and engage in other health-promoting behaviors than typical meat eaters—resulting in a multifaceted lifestyle shift that’s hard, if not impossible, to account for in diet studies.
- This one’s my main impetus for this endeavor. As proof of the healthfulness of veganism, many folks are citing the opening paragraph of the conservative American Dietetic Association‘s most recent vegetarian position paper, which says:
It is the position of the American Dietetic Association that appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases. Well-planned vegetarian diets are appropriate for individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes.
That sounds pretty great. But if you trudge beyond the first paragraph and actually read the whole paper (available for download here), you’ll find a less-than-glowing description of the vegan literature—including sections indicating that vegans have higher homocysteine levels, lower DHA in their breast milk, more frequent bone fractures, higher rates of vitamin D and iodine deficiency, and pregnancies that haven’t been studied enough to draw any conclusions. I already have some other issues with the ADA, but I probably don’t need to explain how I feel when data and the conclusions drawn from it don’t match up.
3. Top Secret China-Study-Related Mystery Thing: I’d love to spill the beans on this one, but they’re not done soaking and I’d hate to flood you guys with lectins. So for now, I’ll just say that I’m working on a thing with a person, and the person and I have the goal of getting the thing published in a well-known other thing, and if all goes as planned, the published thing should help combat the “but the China Study re-analysis isn’t peer reviewed!” argument. As soon as I can say more about the thing, you’ll be the first to know.
Last but not least, Mercola has a brand new interview up with the original China Study obliterator Chris Masterjohn—and it’s a must-listen for anyone still following “The China Study” debacle. Chris does a stellar job of explaining the most important gaps and distortions in Campbell’s best-selling book, including the problems with his casein research. If you had trouble trudging through my shamelessly verbose critique or didn’t have time to read articles addressing other misleading parts of “The China Study,” this interview will get you caught up to speed. (One warning: The date on Mercola’s article is December 11, 2010—currently six days into the future. Will linking to it right now destabilize the universe? I guess we’ll find out.)
More coming soon!