Protein and muscle
Learn how amino acids, resistance training, and recovery support muscle and health.
Start with protein metabolism, then choose a question about intake, synthesis, or muscle preservation.
- START HERE
Protein Metabolism Explained: Digestion, Amino Acids, Muscle Repair, and Energy
A broad foundation for this topic.
- FOCUSED QUESTION
Does All Protein Turn Into Sugar? Gluconeogenesis, Amino Acids, and the Truth About Steak as Fuel
A focused guide with sources and practical next steps.
- FOCUSED QUESTION
Muscle Protein Synthesis: How Training, Protein, Age, and Recovery Build—or Preserve—Muscle
A focused guide with sources and practical next steps.
- FOCUSED QUESTION
How Much Protein Do You Need? Evidence-Based Targets for Health, Fat Loss, and Strength
A focused guide with sources and practical next steps.
- FOCUSED QUESTION
Why the Body Breaks Down Muscle—and How Resistance Training and Nutrition Help Protect It
A focused guide with sources and practical next steps.
Put the information in context
The free energy-needs and movement tools can help you set a starting point. Estimates are educational and should be adjusted with your own experience and qualified care when needed.
Use the energy-needs tool →General education does not diagnose or treat a condition. Discuss symptoms and individual medical questions with a qualified professional.