L-Carnitine is a compound derived from the amino acid lysine, which is necessary for the transport of fatty acids into the mitochondria for the creation of energy. Normally our body has the ability to create the amount of necessary L-Carnitine for this purpose, but this is not the case for some people, and the reason why supplementation is required.

L-Carnitine has also been used for other purposes in addition to weight loss and athletic performance, in particular for cardiovascular and brain/nerve health. Studies show that heart diseases such as angina or heart failure have been put to the test by L-Carnitine supplementation as a means to prevent and reduce the symptoms.