ROBERTA LARSON DUYFF, MS, RD, FADA, CFCS, is a Registered Dietitian, Fellow of the American Dietetic Association, the recipient of the ADA's prestigious Medallion Award, and a nationally recognized food and nutrition expert on healthy eating. She is the author of 365 Days of Healthy Eating from the American Dietetic Association, Monthly Nutrition Companion, and Nutrition and Wellness. Her work has appeared in USA Today, Living Fit, Better Homes and Gardens, Cooking Light, Vegetarian Times, Parenting, and Ladies' Home Journal, as well as on WebMD. Duyff appears regularly on national media. AMERICAN DIETETIC ASSOCIATION is the largest group of food and nutrition professionals in the world. As the advocate of the dietetic profession, the ADA serves the public by promoting optimal nutrition, health, and well-being.