The group of women in a new study with the lowest rate of breast cancer consumed about four tablespoons of olive oil each day. Heather Rousseau/NPR hide caption

itoggle caption Heather Rousseau/NPR

Parents of children who are extremely finicky may find it useful to seek help, psychologists say, because some kids won't outgrow the behavior on their own. But don't make the table a battlefield. Chad Springer/Corbis hide caption

itoggle caption Chad Springer/Corbis

A meta-analysis found that people on vegetarian diets lost around 4.4 pounds more than the control group (who had no change in diet), while those who went vegan dropped 5.5 pounds more. Marcus Butt/Ikon Images/Corbis hide caption

itoggle caption Marcus Butt/Ikon Images/Corbis

The Mediterranean-like DASH and the plant-centric Ornish eating plan topped this year's rankings of diets by a panel assembled by U.S. News & World Report. Gillian Blease/Getty Images/Ikon Images hide caption

itoggle caption Gillian Blease/Getty Images/Ikon Images

After a hard day of bruising battle, ancient gladiators reached for a post-workout drink, according to an ancient account. New research backs that up. Stefano Bianchetti/Corbis hide caption

itoggle caption Stefano Bianchetti/Corbis

A new study linking animal protein-rich diets to increased mortality in middle age adds fuel to the controversy over how much protein — and from what sources — is ideal for health. One thing that seems pretty clear: It doesn't hurt to go heavy on the greens. iStockphoto hide caption

itoggle caption iStockphoto

Government workers exercise at their office in Mexico City, August 2013. To counter the obesity epidemic, the city requires all government employees to do at least 20 minutes of exercise each day. Tomas Bravo/Reuters /Landov hide caption

itoggle caption Tomas Bravo/Reuters /Landov

A crostini of smoked trout, hard-boiled egg, aioli and roe at The Red Hen in Washington, D.C. Owner/Chef Michael Friedman says Mediterranean cooking is simply a tweaking of basic cooking ideas. Courtesy of Brian Oh hide caption

itoggle caption Courtesy of Brian Oh

People following a 5-2 diet would eat lean protein and non-starchy vegetables two days a week. Heather Rousseau/NPR hide caption

itoggle caption Heather Rousseau/NPR