Carnitine is a nitrogen-containing compound that assists in fat metabolism. Carnitine plays an essential role in making fatty acids available for muscle tissue. Carnitine is also found naturally in cells that use fat for energy. Carnitine is found throughout the body, including in the heart, muscles, liver and kidney. Carnitine also helps the body use energy stores to power muscular contractions - providing support for endurance exercise and during recovery from high intensity exercise. For more than 40 years, Puritans Pride has helped families achieve a lifestyle of wellness. Puritans Pride vitamins and supplements are made with care from the highest quality ingredients.