L(-)-Carnitine is widely used in the health and fitness industry due to its role in energy metabolism. It helps transport fatty acids into the mitochondria, where they are burned for energy, making it a popular supplement for athletes and individuals looking to improve physical performance and endurance. It is also used in weight management programs to support fat loss by enhancing the body's ability to utilize fat as an energy source. Additionally, L(-)-Carnitine is incorporated into dietary supplements aimed at improving heart health, as it supports cardiovascular function by optimizing energy production in heart cells. In medical contexts, it is prescribed to treat carnitine deficiency, which can lead to muscle weakness and other metabolic issues. Its antioxidant properties also contribute to reducing oxidative stress, benefiting overall cellular health.