2 grams of l carnitine L-carnitine supplementation at doses 2–4 g/day has been shown in a randomized, double-blind, placebo-controlled trial by Salvatore Benvenga to reverse and prevent symptoms of iatrogenic hyperthyroidism in women receiving TSH-suppressive levothyroxine The body is able to produce small amounts of it on its own Top L-Carnitine Supplements | GNC
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Sharabi A, Tsokos M, Ding Y, Malek T, Klatzmann D, Tsokos G (2018) Regulatory T cells in the treatment of disease

10.1007/s00347-005-1216-4 [DOI] [PubMed] [Google Scholar] 94.Agarwal R, Agarwal P

it quenches free radicals easily, is amphiphilic, and does not have any serious side effects

Because theyre unstable substances, free radicals set off destructive chain reactions, stealing electrons from other molecules and making them unstable too
