Nutrient Tip Tuesday: Meet the Fat Burning Powerhouse: L Carnitine This essential nutrient acts as a shuttle, transporting fatty acids directly into your mitochondria to be burned for ATP (energy). Essentially, it helps your Benefits of L Carnitine for PCOS: Improve Insulin Resistance & Weight Loss Long Chain Hydroxy Acyl CoA Dehydrogenase Deficiency ( LCHADD) New England Consortium of Metabolic Programs Metabolites as regulators of insulin sensitivity and metabolism Nature Reviews Molecular Cell Biology