Caffeine consumption can influence workout efficiency by enhancing performance and increasing alertness. It stimulates the central nervous system, leading to improved focus and reduced perception of fatigue, which can boost overall endurance. Caffeine also promotes fat oxidation, potentially improving energy levels during exercise. However, individual responses vary; some may experience jitters or digestive discomfort. Timing and dosage are key; moderate pre-workout caffeine intake usually yields the best results. Understanding personal tolerance helps optimize benefits, making caffeine a valuable tool for enhancing workout efficiency.