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 Dietary l Carnitine Supplementation in Obese Cats Alters Carnitine Metabolism and Decreases Ketosis during Fasting and Induced Hepatic Lipidosis ScienceDirect Felifat Richmond Vet Pharma The yellow fellow: Evaluation of the icteric cat VetBloom 3 Ways to Give LCarnitine to Cats with Fatty Liver wikiHow Pet