L carnitine is a legendary and historically popular addition to a successful weight loss plan can be used with diet whey or any other low carbohydrate and low calorie protein shake to maximise a calorie controlled diet plan l carnitine is synthesized in the body and derived from the amino acids lysine and methionine l carnitine can be taken at any time of the day and is predominantly used by athletes as part of a healthy diet and weight loss plan l carnitine has served for many years as an