L carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double blind, placebo controlled trial. Semantic Scholar Direct effects of thyroid hormones on hepatic lipid metabolism Nature Reviews Endocrinology Low Thyroid or Hypothyroidism: Causes, Symptoms, and Solutions L carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double blind, placebo controlled trial. Semantic Scholar How Does Carnitine Support Hashimoto's? Dr. Izabella Wentz The most common cause of hypothyroidism worldwide is insufficient intake of iodine, a mineral found in iodized salt and some foods (such as seafood and dairy) that is needed for production of