Milk, whey, casein the latter two are derived from milk, egg, and meat have produced best results in studies. 모든 필수 아미노산은 근육 합성에 중요하지만 류신은 아마도 가장 강력한 아미노산일 것입니다. It acts as a signal for protein synthesis in the muscles, triggering key metabolic pathways.