Pre-workout refers to supplements that are designed to be taken before physical activity, usually exercise or training sessions. These supplements are formulated to provide a boost in energy, improve endurance and increase mental focus during exercise. Typical ingredients in pre-workout supplements include caffeine, amino acids, creatine, beta-alanine and nitrate oxidizers.
Caffeine, a common ingredient, helps to increase alertness and reduce the experience of fatigue, while amino acids and creatine support muscle repair and strength. Beta-alanine can help to reduce lactic acid build-up, improve endurance and reduce muscle fatigue. Pre-workout supplements vary in composition and effects may vary from person to person. It is important to consult a healthcare professional before using such supplements, especially for those with underlying health conditions.