L-Carnitine, a biological substance in our body, contributes to the breakdown of fats and plays a crucial role in energy metabolism, i.e., in the transfer of fatty acids into mitochondria, the "powerhouses of our cells," where fatty acids are broken down. Under normal circumstances (no illnesses, no stress), sufficient carnitine is produced in the liver and kidneys. L-Carnitine is then transported to tissues where it contributes to energy metabolism. The synthesis of L-Carnitine requires the amino acids lysine and methionine, vitamin C, and B6, niacin, and Iron.
L-Carnitine is found in large amounts in red meat, especially beef, but also in grains, avocados, asparagus, and peanuts. Nevertheless, one must take L-Carnitine in the form of dietary supplements to achieve desired goals (fat burning and physical fitness). L-Carnitine promotes muscle building, reduces fatigue, and helps in the recovery of muscles.