Diets rich in whole grains, fruits, vegetables and even a little alcohol may help ward off heart woes, new studies show.

More than 30 percent of American children take some kind of dietary supplement, mostly multivitamins and multiminerals, a U.S. National Institutes of Health study finds.

Since 2001, when U.S. health officials warned pregnant women to eat no more than 12 ounces of fish a week because of potential mercury contamination, many women have been confused, and fish consumption has dropped.

Garlic lovers, take heart: The pungent root may promote healthier responses in blood vessels.

High blood levels of vitamin D did not lower the overall cancer death rate in a long-term study, researchers report.