This document summarizes guidelines for sports nutrition and exercise programs. It recommends starting exercise slowly, varying workouts for fun, working out with others, setting specific goals, and rewarding progress. A balanced diet based on dietary guidelines meets increased energy needs from exercise. While supplements provide no added benefit, protein intake of 1.2-1.6 g/kg daily benefits athletes, and some older adults on exercise programs may need more. Carbohydrate loading benefits long-distance activities but not most sports. The Pennington Biomedical Research Center conducts nutrition and obesity research.