L Carnitine for Cats: Why Energy Drops, How Fat Metabolism Stalls, and How to Protect Heart Function La Petite Labs Use of L carnitine in canine and feline obesity management Dr+Vet AndersenPets Hill's m d GlucoSupport: Nutrition for Diabetic & Overweight Cats Carnitine Deficiency MD Searchlight Let's look at L carnitine Animal Wellness Magazine 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