Author Blog Posts13 Beauty Lessons Mom Was Right AboutGlamour MagazineApril 29, 2010 at 8:55 PMLink CopiedRead full articlePhoto by: Condé Nast Digital Studio"JUNK FOOD WILL RUIN YOUR SKIN."-Conventional wisdom used to be that diet didn't affect your complexion. But a recent study in the Journal of the American Academy of Dermatology found that people who replaced processed carbs with foods high in protein and whole grains broke out less. The reason? "High-glycemic foods cause your blood sugar to rise, triggering a surge of insulin. The insulin stimulates oil-producing hormones called androgens, leaving you with pimples," says Leslie Baumann, professor and director of cosmetic dermatology at the University of Miami's Miller School of Medicine. Cut the junk, and you could see an improvement in your acne in about six weeks.Call it nagging, call it scolding, call it...good advice? Take a second to listen to your mother-and get better skin for it. More from Allure: 10 Hairstyles That Make You Look 10 Years Younger37 New Hair Ideas For 201017 Bad Skin Habits10 Greatest Celebrity Hair Makeovers Ever20 Products That Will Make You Look Younger Instantly View comments