
MUSCLE PROTEIN SYNTHESIS: THE SCIENCE OF MUSCLE BUILDING Proteins play a central role in building muscle through a process known as muscle protein synthesis (MPS). When you consume protein, your body breaks it down into amino acids , which are then used as the building blocks to repair and grow muscle tissue—especially after resistance exercise or weight training . The combination of resistance exercise and increased protein intake is the most effective strategy for promoting muscle hypertrophy , or growth in muscle size (Nutrients, 2020) [ https://www.mdpi.com/2072-6643/12/7/2023 ]. Research has shown that muscle protein synthesis is maximized in young adults with an intake of about 20–25 grams of high-quality protein per meal (Journal of the International Society of Sports Nutrition, 2018)[ https://www.tandfonline.com/doi/abs/10.1186/s12970-018-0215-1 ]. Spreading protein intake evenly across meals throughout the day stimulates greater 24-hour muscle protein synthesis compare...