She owns Nutrition Strategy Advisors, LLC, publishes blogs and podcasts at RadioNutrition.com, and contributes to many other web publications. . Donna P. Feldman, MS, RDN, is a registered dietitian nutritionist in Colorado, specializing in child nutrition, eating disorders, vegetarian/vegan diets, sports nutrition and food allergies. She owns Nutrition Strategy Advisors, LLC, publishes blogs and podcasts at RadioNutrition.com, and contributes to many other web publications. . Share this article