[...]when I was reading the section on food and obesity and your critiques on the food industry, I though I was reading Pollan. Yet you arrived at a very different conclusion, and a low carb one at that, with room for exceptions. I was wondering if you came across Pollan when you were researching the food and nutrition section, and if so what your opinions are of him? More broadly, is the recommendation of 40:20:40 p/c/f because you feel this is a reasonable goal for people to aim for, or is this what you have found is an ideal ratio from your experience helping your individual clients?
Pollan is certainly a hell of smart dude, and even though some of his thoughts are hard (for me) to mutually reconcile, his books are worth reading just because he has an incredible style, and puts forth some really well-researched analysis that may blow your mind, even if the particular study may be familiar to you. He also manages his activism where he can get his point across without coming off with that slimy ulterior-motive aftertaste that’s so frequent lately in the wake of evolutionary/historical diet becoming A Big Thing. I’ve only read “In Defense of Food” and “The Omnivore’s Dilemma”, but Food Rules is in my cart and I intend to read it soon.
My major divergences are probably summarized due to two things:
1) Individuals. People are radically different not just on the genetic and biological levels, but on the ways all these systems interact with each other. There are millions of permutations that make it to where two people on the exact same diet and program will almost invariably get differing results. Hard to say with someone’s lineage what sort of responses, tolerances, and so forth will apply, and each of those things complicate still further based on the the interactions of food, stress, stimulus and so forth.
In short, people are mad complex and there’s no blanket solution. However, one thing that is becoming apparent (thanks to diabetic research more than anything diet or supplement companies have contributed) is that many diet profiles are complicated and hindered by poor carbohydrate control, especially in excessive sugars. Vice versa, controlled-carb diet studies suggest that body composition and health are improved, independent to exercise or even (gasp) genetic/ethnic diversity.
That said, I seldom advocate extremism (the exception being against trans fats) and I feel like carbs have a place in a diet, and exercise both enhances the benefit from carbs and minimizes the potential negative impact.
2) Practicality. A pragmatic, realistic approach for “everyone” is a core concept of Brain Over Brawn. Even if we had the infrastructure in place for everyone to switch to a quinoa-and-red-yeast-rice diet tomorrow morning, not everyone has the money to buy everything organic and local, and even fewer have the immediate desire. Or to give up all their foods, or eat “mostly plants” or anything else. It’s certainly something I can agree with philosophically, and I respect Pollan’s stand against the factory-farm food industry. But it’s not going to change overnight, and my target with Brain Over Brawn was specifically designed to be things that can change overnight, or even right now, as someone reads it.
And all that said, I agree with you. Macros really aren’t that important in the grand scheme, especially since the type and quality of food, the foods with it, the eater’s internal chemistry (both genetic disposition and at-the-time), add so many factors that the same meal could have a significantly different effect on a different person or just a different day.
The best practical solution I’ve found is to orient carbs to exercise, making carbs less of a factor for people when physical activity is also less of a factor for them, and allowing for increased carbs alongside more exercise (both as a reward, and due to the tendency for higher tolerances due to improved physical profile). I allow for most vegetables in Base meals (without fearing for carb count), and for fruits as well in Peak meals; the 40/40/20 split is a target for people who simply can’t come to terms with the Base/Peak division of meals. Going with the Base and Peak meal design makes accurate counting/hair-splitting largely irrelevant; restricted carbs for sedentary people, carb allowance for active people. Bing bang boom.