Nutritional Weight and Wellness :: Symptoms and Support for Hyperthyroidism The supplement secret for hyperthyroidism? , When dealing with hyperthyroidism or Graves disease, L carnitine can be a total game changer. It helps block the entry of thyroid hormone into the cell Exploring the potential anti thyroid activity of Acetyl L carnitine: Lactoperoxidase inhibition profile, iodine complexation and scavenging power against H2O2. Experimental and theoretical studies ScienceDirect Combating 131I Side Effects in Thyroid Cancer Encyclopedia MDPI Successive thyroid storms treated with L carnitine and low doses of Methimazole The American Journal of Medicine