Traditional nicoise salad with canned tuna fish, olives and eggs

Can science help personalize your diet?

An ambitious and inclusive nationwide health study aims to predict which diets will yield the best nutrition based on genes, microbes, and lifestyle.

This traditional Niçoise salad with canned tuna fish, olives, and eggs, looks like a perfectly balanced meal. But it might not be the right choice for everyone.
Photograph by Natasha Breen, REDA&CO/Universal Images Group/Getty Images
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