Carnitine is a vitamin-like compound found in meat and dairy products that can also be manufactured by the body with the help of the amino acid lysine. Carnitine increases the use of fat as a source of energy by helping transport fatty acids to the mitochondria. Furthermore, carnitine is recommended also for its benefits for those with heart disease. Carnitine helps lower bad LDL cholesterol and raises the good HDL as well as improves blood flow. Lastly, no serious side effects have been discovered yet.