Teenagers who eat a lot of fiber-rich foods, such as vegetables and whole grains, are less likely to have risk factors for diabetes and heart disease, a new study shows. But there was no link between those risk factors -- known collectively as metabolic syndrome -- and how much saturated fat or cholesterol kids ate. That doesn’t give teens the green light to chow down on fatty foods, however, said Joe Carlson, who heads the Division of Sports and Cardiovascular Nutrition at Michigan State University in East Lansing.