L carnitine biosynthesis. L carnitine can be partly provided by an Download Scientific Diagram L Carnitine Benefits: A Complete Research Based Guide The effects of L carnitine on renal function and gene expression of caspase 9 and Bcl 2 in monosodium glutamateinduced rats BMC Nephrology Springer Nature Link If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.