GLP-1 Muscle Protection Calculator

Thrive+40 Tools

Losing weight on Ozempic, Wegovy, Mounjaro, or Zepbound? Some of every pound you lose can be muscle, not fat — unless you protect it. See your estimate in 30 seconds.

How many pounds have you lost so far (or plan to lose)?

How often do you strength train? (weights, bands, or bodyweight — walking doesn’t count here)

Do you hit a daily protein target most days?

Please enter your pounds lost and answer both questions.

likely fat could be muscle

Your Muscle Protection Plan

Why this matters after 40: muscle you lose now is much harder to rebuild later — and it’s what keeps your metabolism, bones, balance, and independence strong. The goal on a GLP‑1 isn’t just a smaller number on the scale. It’s losing fat while keeping the strength you’ll rely on for the next 40 years.

Get your exact protein target →

Estimates based on published research: meta‑analyses report that roughly 25–40% of weight lost on GLP‑1 medications can come from lean mass when no countermeasures are used, and that resistance training plus adequate protein substantially shifts loss toward fat. Individual results vary widely; ranges shown are educational estimates, not measurements.

This calculator provides general educational information, not medical advice, and results are estimates. Consult your physician before changing your nutrition, especially if you have a medical condition or take medication. Never stop or change a prescribed medication without talking to your doctor.