Beta-alanine is a non-essential amino acid that plays a key role in the production of carnosine, a compound that helps buffer acid in muscles during high-intensity exercise. By increasing carnosine levels, beta-alanine may enhance athletic performance, particularly in activities that require short bursts of energy, such as sprinting or weightlifting. Supplementing with beta-alanine can lead to improved endurance and reduced fatigue, allowing athletes to train harder and longer. It is commonly found in pre-workout supplements and is considered safe for most people when taken in recommended doses.