Researchers report what most soft-drink labels don't: how much caffeine your refreshments contain.

Coffee and tea appear to keep aging women sharp. Men, not so much.

Novel watermelons offer lots of taste but little sugar.

Novel watermelons offer lots of taste but little sugar.

People's gut microbes digest fiber from coffee in a fermentation process, making beneficial compounds.

A study in twins finds that genes may be responsible for a high or low threshold to the detection of sour tastes, but not of salty ones.

Mice eating a diet laced with an estrogen-like constituent of soy display a puzzling variety of changes, some apparently good, some potentially bad.

Mice eating a diet laced with an estrogen-like constituent of soy display a puzzling variety of changes, some apparently good, some potentially bad.

Foie gras contains misfolded proteins that, when given to mice, trigger disease.

One of soy's ostensibly beneficial constituents may aggravate cardiovascular disease, at least in older women.

One of soy's ostensibly beneficial constituents may aggravate cardiovascular disease, at least in older women.

When rodents eat the equivalent of a fast-food diet, they develop health problems similar to those seen in the movie Super Size Me.

The beans used to make chocolate can also render a tooth-decay-fighting extract; unfortunately, it's bitter, not chocolaty.

Vitamin D may prevent symptoms of asthma in toddlers.