The purpose of pre-workout supplements is to enhance athletic performance and energy levels during exercise. These supplements often contain ingredients such as caffeine, beta-alanine, and creatine, which aim to improve endurance, strength, and focus. By increasing energy levels and reducing fatigue, pre-workout supplements help athletes maximize their training sessions and achieve higher performance goals. However, individuals should approach these products cautiously, considering possible side effects and the importance of whole food nutrition in their fitness regimen.