L carnitine is synthesszed 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 exercise plan phd nutrition l carnitine comes in a convenient tablet format nutrition container size 90 tabs serving size 3 tablets servings per container 30 amount per serving l carnitine 1500mg ingredients l carnitine l tartrate bulking agent microcrystalline cellulose calciu