An amino acid required for protein synthesis in humans - required to live and grow. Effects are wide ranging and require more study to detail full. Treats the herpes virus by reducing outbreaks - how it accomplishes this is unclear. Helps recover after workouts, rebuilding tissues. Helps create carnitine to convert fatty acids into energy. Helps calcium absorption/overall bone health and collagen production. Help repair damaged DNA only when paired with light therapies. Helps reduce stress induced anxiety responses. Most commonly found in eggs, lamb, beef, soy, parmesan cheese, tuna, turkey, chicken, shrimp, pumpkin seeds and white beans.