Liothyronine is a manufactured form of the thyroid hormone triiodothyronine (T3). Use of liothyronine provides optimal levels of T3, the most active form of thyroid hormone. In addition studies have shown (Tost 2020, Celi 2019) that liothyronine usage has been linked to improved lipid metabolism (fat loss), cognition and mood, without negative effects on cardiac function or insulin sensitivity. Â
How to take Liothyronine