Creatine plays a significant role in fitness by enhancing muscle performance during high-intensity exercise. It serves as a readily available energy source, replenishing ATP (adenosine triphosphate), the primary energy carrier in cells. This replenishment allows for improved strength, increased power output, and enhanced endurance during short bursts of activity, making it a popular supplement among athletes and bodybuilders. Additionally, creatine supports muscle recovery and may increase muscle mass over time. Although generally safe for most individuals, it is essential to consult with a healthcare provider before starting supplementation to ensure appropriate dosage and usage.