Beta-Alanine

Beta-Alanine is popular among athletes looking to improve performance in high-intensity activities lasting 1 to 4 minutes, such as sprinting, rowing, or circuit training. When ingested, beta-alanine combines with histidine to form carnosine, a dipeptide that acts as an intracellular buffer, delaying the onset of muscle fatigue caused by acid accumulation. Supplementation with beta-alanine has been shown to increase muscle carnosine concentrations significantly over time, leading to improved exercise capacity and reduced fatigue. It is often included in pre-workout formulas and is typically consumed as a powder or capsule. The most common side effect is a harmless tingling sensation known as paresthesia, which can be minimized by dividing doses.

Beta-Alanine increases muscle carnosine content, which buffers hydrogen ions produced during anaerobic metabolism. This buffering capacity helps maintain optimal pH levels in muscle cells, reducing acidity that contributes to fatigue and impaired muscle contraction during intense exercise.