Triiodothyronine T3 is not an anabolic steroid, but it plays a similar role to anabolic steroids to some extent. Although it is a drug used to treat hypothyroidism, but as a hormone (thyroid hormone),  use T3 for bodybuilding, there will be corresponding side effects. Thyroid axis inhibition The first is the inhibition similar to that of anabolic steroids. Exogenous T3 …