TCfeline Special Formula Premix Feline Future Cat Food Company Carnitine Deficiency: What You Need to Know The Medical Biochemistry Page 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 Taurine is vital for your cat's vision, heart health, and digestion. A deficiency can cause serious health issues, but quality cat food is specially designed to meet their taurine needs. Discover