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Food Faddism

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If there’s one thing Americans love, it’s food faddism. The history of full of weirdness, from John Harvey Kellogg’s yogurt enemas that placed yogurt cultures in our mouths and rectums at the exact same time to Sylvester Graham’s graham crackers, created so we wouldn’t eat meat and milk and get all hot and bothered and start masturbating.

We (or at least my students) laugh at all this. But are we any different today with our nutty diets? Not really.

Luckily, there are at least some people pushing back against this. Here’s a discussion of the new Marlene Zuk book exposing the absurdity of the paleo diet. The paleo diet falls under the overarching theme of recent American dieting, which can be summarized as “I want to eat as much meat as possible and will look for any justification to do so.” And do whatever you want, but it’d be nice to avoid the absurd discussions about what our distant ancestors did or did not eat.

Zuk detects an unspoken, barely formed assumption that humanity essentially stopped evolving in the Stone Age and that our bodies are “stuck” in a state that was perfectly adapted to survive in the paleolithic environment. Sometimes you hear that the intervention of “culture” has halted the process of natural selection. This, “Paleofantasy” points out, flies in the face of facts. Living things are always and continuously in the process of adapting to the changing conditions of their environment, and the emergence of lactase persistence indicates that culture (in this case, the practice of keeping livestock for meat and hides) simply becomes another one of those conditions.

For this reason, generalizations about the typical hunter-gatherer lifestyle are spurious; it doesn’t exist. With respect to what people ate (especially how much meat), the only safe assumption was “whatever they could get,” something that to this day varies greatly depending on where they live. Recently, researchers discovered evidence that people in Europe were grinding and cooking grain (a paleo-diet bugaboo) as far back as 30,000 years ago, even if they weren’t actually cultivating it. “A strong body of evidence,” Zuk writes, “points to many changes in our genome since humans spread across the planet and developed agriculture, making it difficult at best to point to a single way of eating to which we were, and remain, best suited.”

But what is evidence in the face of food faddism?

And of course there’s the gluten-free insanity. While celiac disease is a real thing that affects about 1% of the population, the fact that 1/3 of the American public is trying to shun gluten is insane. There is zero evidence that most of these people need to do this. Anecdotally, it definitely feels that a good number of people I have met who are avoiding gluten are, how shall we say, lifestyle experimenters more broadly. More broadly, I think this relates to the paleo diet in the context of how dieting has gone over the past 15 years–again, avoiding grains and eating meat. What makes gluten-free different is the theoretical health benefits as opposed to the I want to eat a steak every night blunt honesty of the paleo dieters.

Obviously, the answer to proper eating is to be healthy and exercise. One can choose whether or not to eat meat for any number of reasons. I was a vegetarian for about 10 years but couldn’t call myself that now, although I have never cooked meat and don’t really plan to. We can have that debate. But it’s remarkable how resilient magic diets are for Americans (and possibly those of other countries, but I can’t much speak to that). They all pretty much defy common sense.

All I can do is eat more wheat and drink more beer. Both of which I intend to do.

PC: I recommend Barry Glassner’s The Gospel of Food on this topic.

[SL]: Related: “I personally feel that it’s unlikely that the richest 1% of humans on earth all suddenly and simultaneously developed allergies to every single common food…”

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