Branched-chain amino acids (BCAAs) continue to be one of the most researched supplements for muscle repair and workout endurance. In a 2023 meta-analysis from Nutrient Physiology, participants taking BCAAs before training experienced decreased muscle soreness and faster recovery within 24–48 hours post-workout. Another study from the International Society of Sports Nutrition reported that BCAAs improve endurance by reducing serotonin-related fatigue — meaning less burnout during high-intensity sessions.
Even more interesting, a recent controlled trial found that BCAAs help maintain lean muscle during caloric deficits, making them ideal for those balancing training with weight goals or intermittent fasting. The body recognizes these essential aminos as immediate fuel, allowing muscle tissue to remain protected even when energy intake fluctuates. Clean fuel. Faster recovery. Elevated performance. Science continues to confirm what athletes have known for years — BCAAs are small molecules with a massive impact.
