[twofornone]

>These are dark days for supplements. Although they are a $30-plus billion market in the United States alone, vitamin A, vitamin C, vitamin E, selenium, beta-carotene, glucosamine, chondroitin, and fish oil have now flopped in study after study

Since the byline brings up race, its kind an aside but I'm almost convinced that a lot of our large scale nutritional/alternative medical studies give mixed results (and are not reproducable) because researchers are unwilling to sufficiently control for genes. High level categories like "black, white, hispanic, asian" are not enough.

[astrange]

If the advice they’re testing was actually strong, it’d work no matter the genes you have.

Dietary genes aren’t correlated to race of course, except for rare ones like Inuits adapting to eating more fat.

For a large scale study I would check if they correlated for geography, blood markers and diet outside the supplements.

[taeric]

Maybe. It is also plausible that ancestral diets have primed people to react to different diets and needs.