Beta-alanine is a non-essential amino acid, meaning the body can produce it naturally and it does not need to be consumed through diet. Unlike most amino acids, it is not used by the body to synthesize proteins. Instead, it combines with histidine to form carnosine, a molecule that helps buffer acid in muscles, which increases physical performance during high-intensity exercise. The supplementation of beta-alanine, often found in sports and workout supplements, has been shown to enhance muscular endurance, improve high-intensity cardio exercise performance, and delay muscle fatigue, particularly in activities that require explosive or high-intensity movements over a short period.