L carnitine reduces hyperthyroidism symptoms L Carnitine and Levothyroxine: A Critical Interaction Warning Anabolic Planner Vitamins to be taken away from thyroid medication Biosynthesis of L Carnitine from lysine Download Scientific Diagram Thyroid medication use as an assisted bodybuilder should be approached with caution and based strictly on individual neednot just because it's what you do during prep. Too often, both competitors and non competitors