My 4 month old girl Margo was diagnosed with polyneuropathy last week. Neurologist has recommended L carnitine as a supplement. She's better than she was but not climbing or jumping yet x LiquiCarn 4oz (120mL) TCfeline Special Formula Premix Feline Future Cat Food Company Renal diets why they're important! It's really important for cats diagnosed with chronic kidney disease (CKD) to eat a diet that has been recommended by their veterinary team and is 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 RX VITAMINS LiquiCarn Liquid Heart Supplement for Cats & Dogs, 4 fl oz bottle Chewy.com