Ibutamoren

Research

Ibutamoren (MK-677)

Category
Growth Hormone
Aliases
MK-677, Nutrobal
Administration
Oral

Documented side effects

Tier 1 · Peer-reviewed / regulatory

Increased appetite

A common effect linked to activation of the hunger-signaling (ghrelin) pathway.

Water retention

A temporary increase in fluid retention, common with compounds that elevate growth hormone.

Elevated blood sugar

May raise blood glucose levels, an effect tied to increased growth hormone activity.

Potential insulin resistance with long-term use

Extended use may reduce how effectively the body responds to insulin over time.