Dr Explains Fat Loss with Growth Hormone & Peptides

31 Jan 2026 · 1 min

Watch on YouTube

0:43

In this video, the presenter explains how growth hormone‑releasing hormone (GHRH) peptides such as tesamorelin and sermorelin, as well as ghrelin‑mimetic peptides, act on the pituitary to increase endogenous growth hormone (GH) secretion. He notes that GH is a potent driver of fat mobilization during fasting, but emphasizes that using these peptides off‑label for weight loss typically yields only modest results unless the individual’s diet is well‑controlled and they are exercising. The speaker frames the peptides not as a "magic bullet" for fat loss, but as agents that can subtly enhance recovery and the body’s natural fat‑mobilizing processes.

Chapters

Let's start with the growth hormone-releasing hormone peptides like tesamorelin and serrmorelin. I have a whole video on how these work, but basically growth hormone-releasing hormone and ghrelin-mimetic peptides are designed to stimulate the pituitary to release growth hormone, and growth hormone is a powerful fat mobilizer when you're fasted. People in the peptide space do use them off-label in hopes for fat loss, but fat loss is usually modest unless the diet's dialed in, and also the person or the mice we're doing the research on is exercising. So the GHRH peptides and ghrelin mimetics are not magic bullet fat loss peptides, but they do subtly bring the body into more recovery and fat mobilization than it already does.