Helps you to set and achieve your nutrition and fitness goals. MyDiet applies a scientifically proven approach to weight loss: Eat less, exercise more. To lose weight, you must consume fewer calories than your body burns. It seems simple. But how much less? And how do you know you are achieving the proper levels of nutrition and exercise? MyDiet provides the support and information you need, all in the palm of your hand. With graphs, goal advice wizards, meal logs, USDA calorie data, and much more.