If you’re on a GLP-1 — Ozempic, Wegovy, Mounjaro — the scale is probably moving. That’s the part everyone celebrates.
Here’s the part that doesn’t make the headlines: a meaningful share of that weight can be muscle, not fat. Research puts it at roughly a third of the weight lost — sometimes more. And losing muscle is exactly what sets up the rebound, because muscle is your metabolic engine. Lose it, and your body burns fewer calories at rest, which makes the weight easier to regain the moment you stop the medication.
You don’t have to let that happen.
Two things protect your muscle while the fat comes off:
- Enough protein to preserve lean tissue (most women on these meds eat about half what they need — and the medication’s appetite suppression makes it even harder to hit).
- Resistance training to give your body a reason to hold onto the muscle it has.
That’s the whole game. It isn’t complicated — but almost no one on these medications is told to do it.
I broke the whole approach down in The GLP-1 Muscle Guide — the physician-backed steps I wish every woman on these meds had from day one: how much protein, what to eat, and how to train so you come out the other side leaner and stronger, not just smaller.
And if you want this built around your labs and your body instead of general advice — which is what actually moves the needle on a GLP-1 — that’s exactly what I do. I work 1:1 with a small number of women at a time, and muscle-sparing GLP-1 coaching is my wheelhouse. Apply for a free consultation.
Muscle is medicine — and never more so than on a GLP-1.
To your strength,
Dr. Rachel Felber, MD
Free: The GLP-1 Muscle Guide
A physician’s guide to protecting your muscle while you lose weight on GLP-1 medications.
