Invicarn Sava Vet Supplements to Support Your Dog or Cat's Heart Animal Wellness Magazine Dietary l Carnitine Supplementation in Obese Cats Alters Carnitine Metabolism and Decreases Ketosis during Fasting and Induced Hepatic Lipidosis ScienceDirect Hill's Prescription Diet w d Multi Benefit Weight GI & Glucose Mana My Animal Dispensary Dietary Carnitine and Carnosine Increase Body Lean in Healthy Cats in a Preliminary Study L carnitine is primarily synthesized in the liver from the amino acids lysine and methionine through a series of four enzymatic reactions, with the liver and kidneys converting the precursor butyrobetaine into active