L Carnitine 6000 Shot Grape, 110 ml Fitness Food Factory Hypothyroid Support & Supplements National Nutrition Articles National Nutrition Articles Thyroid What is carnitine? Carnitine is produced in the body from the amino acid lysine and naturally occurs in some foods. It supports energy metabolism and muscle function, which are important What are the symptoms of carnitine (L carnitine) deficiency? Frontiers Association between fatigue, peripheral serotonin, and L carnitine in hypothyroidism and in chronic fatigue syndrome Did you miss this article on John Meadows' www.mountaindogdiet.com ? Dancing with the Devil: L Carnitine (TLDR: L Carnitine might a actually be counteracting your fat loss by *blocking* thyroid action. More is not