3,3′-Diiodo-L-Thyronine
Also known as 3,3′ T2. A breakdown metabolite of the active (T3) thyroid hormone, 3,3′,5-triiodo-L-thyronine. It’s included in some weight loss supplements as a “thyromimetic” compound, although there is no human data to support its use for this purpose. There is limited animal data that demonstrates it can increase metabolic rate and energy expenditure, but the 3,3′-diiodo-l-thyronine was administered by injection – not orally.
