β-Alanine is widely used as a dietary supplement, particularly among athletes and bodybuilders, due to its ability to enhance physical performance. It works by increasing the levels of carnosine in muscles, which helps buffer acid and delay the onset of muscle fatigue during high-intensity exercise. This makes it beneficial for activities like sprinting, weightlifting, and other short-duration, high-effort exercises. Additionally, β-alanine is sometimes included in pre-workout formulas to improve endurance and overall workout capacity. Beyond sports nutrition, it is also being explored for its potential benefits in reducing age-related muscle loss and improving overall muscle function in older adults.