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Postmenopausal women can protect their bones by exercising, but adding black cohosh-an herbal supplement thought to have estrogen-like effects-to exercise confers no extra protection. Thats the conclusion of a year-long clinical trial involving 128 women who recently went through menopause.

Science suddenly seems to have a java jones. Four new studies focus on Americas favorite morning brew, adding to the overflowing cup of research linking coffee consumption to health benefits.

When it comes to whole grains, were only about 5,000 years behind the Incas. Those ancient people of the Andes were the first to cultivate quinoa (KEEN-wah), which they called chisaya mama, the mother of all grains. Today, quinoa has been designated a super crop by the United Nations for its potential to feed the worlds hungry and studied by NASA as an ideal food for long-duration space flights. In a 2010 Whats Hot survey of American chefs, the National Restaurant Association named quinoa as the hottest trend in side dishes.

Does extra calcium-which many people take to boost bone health- also protect against heart disease and death? Science continues to answer with a firm maybe, maybe not. A pair of new studies, however, suggest that while calcium supplements may not have such protective benefits, a diet rich in foods containing calcium might.