T3

Steroid Terms

CytomelLiothyronine

Definition

Synthetic thyroid hormone (triiodothyronine). Used to increase metabolic rate during cutting phases. Must be tapered carefully to avoid thyroid suppression.

Related Blood Markers

Free T3

Unit: pmol/L

Most active thyroid hormone. Directly affects metabolic rate.

TSH

Unit: mIU/L

Pituitary hormone that controls thyroid gland output.

Free T4

Unit: pmol/L

Active thyroid hormone. Controls metabolic rate.

Related Compounds

T3 (Cytomel)

Other

Synthetic thyroid hormone T3. Used in contest prep for metabolic boost.