
A fan of black coffee and dark chocolate? It's in your genes, a new study says
CNN
Prefer your coffee black and your chocolate dark? You may have a type of gene that predisposes you to like unsweet, bitter foods that are often good for you.
If that's you, then congratulations -- you are the lucky genetic winner of a trait that may offer you a boost toward good health, according to caffeine researcher Marilyn Cornelis, an associate professor of preventive medicine at Northwestern University Feinberg School of Medicine.
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