What should we eat?

VELiM

Answers to this simple question often appeal to science. Nutrition science, we are told, can tell us what we should or shouldn’t eat if we want to be healthy, fit and prevent disease. But are these appeals to nutrition science legitimate? We think in many cases the answer is “no”.

Some of the most egregious offenders misusing nutritional science are listicles – “10 Unbelievable Diet Rules Backed By Science,” the “14 Things You Should Never Eat,” or “10 Foods Science Says Are Healthier For Your Hair.” But even more legitimate sources of advice can be prone to misuse science and are guilty of what we label nutritional scientism.

In a recent article in the Journal of Bioethical Inquiry we critiqued three types of nutritional scientism: (1) the oversimplification of complex science (including suggesting causation from probabilistic conclusions from observational studies) to increase the persuasiveness…

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