Fit Science

Diet & Nutrition

Explore protein, macronutrients and meal planning for training. Start with the fundamentals, then follow the links to more detailed discussions of individual nutrients and food choices.

Nutrition starting points

Connect food choices with your training

Use the exercise science library for related guides to technique, programming and recovery. Browse the nutrition articles below for focused questions and references.

Food choices and supplement research

Explore specific questions about food, nutrients and training adaptations. Each guide discusses its topic in more detail; study findings and practical claims should be read in their original context.