Rachel Beller, author of the bestselling books Eat to Lose, Eat to Win, and Power Souping is a registered dietitian and founder of the Beller Nutritional Institute in Los Angeles. Rachel is a spokesperson for the American Cancer Society, a weight loss and cancer prevention nutrition expert and is actively involved in community outreach. She also serves as a nutrition expert for Glamour magazine and was previously the nutritionist for NBC's hit series, The Biggest Loser. She appears frequently on Good Morning America, The Dr. Oz Show, CNN, and ABC's World News Tonight.