GLP-1 receptor agonist
Also called: semaglutide, Ozempic, Wegovy
What it means
GLP-1 receptor agonists like semaglutide (Ozempic, Wegovy) are diabetes and weight-loss medications that don't seem to harm bone directly, but the weight loss they cause can indirectly affect bone and muscle.
If you're on a GLP-1 medication, knowing that rapid weight loss can reduce muscle and bone loading helps you take steps to protect your skeleton along the way.
GLP-1 receptor agonists are a class of medications, including semaglutide (sold as Ozempic or Wegovy), originally developed for diabetes and now also used for weight loss. They work by mimicking a gut hormone that affects appetite and blood sugar. On their own, these medications don't appear to directly damage bone.
The bone concern isn't the drug itself, but what happens when someone loses weight quickly. Rapid weight loss, no matter the cause, can reduce the mechanical loading your skeleton is used to and can also shrink lean muscle mass. Since bones respond to the forces placed on them, less loading and less muscle can indirectly affect bone health over time.
The encouraging part is that this risk can potentially be addressed. Getting enough protein, doing resistance training, and keeping calcium and vitamin D levels adequate while on GLP-1 therapy may help offset these effects. Any questions about starting, adjusting, or stopping a GLP-1 medication should be discussed with your prescriber, since they can weigh your full health picture.
How sure is this?
Graded Emerging Evidence: Promising research, but findings are still developing and may be primarily from laboratory or animal studies. Read each study with its grade in mind. One study is a piece of the picture, not the whole of it.
Where the Academy teaches it
This page is the short version. The lessons teach it in full, with the context around it and a quiz to lock it in.
Questions people ask about this
Yes, it's possible — a number of common medications can affect bone, so it's a smart question to ask. This doesn't mean you should change anything on your own; it just means it's worth reviewing your full medication list with your prescriber to understand whether bone monitoring makes sense for you.
Read the full answer →Related words
Protein intake means getting enough dietary protein to support collagen, the protein that makes up about a third of…
Resistance training is exercise where your muscles work against weight or resistance, like squats, deadlifts, or…
Vitamin D is a nutrient that helps your gut absorb calcium so it can be used to build and maintain bone.
Calcium is the main building-block mineral in bone, and since your body can't make it, you need to get it from food…
Lean mass is mostly your muscle weight — the non-fat part of your body. It's tracked because it's closely linked to…
Sarcopenia is the gradual loss of muscle mass and strength that comes with aging, and it's closely tied to bone health.
Education only, not medical advice. Decisions about tests, medications and treatment belong with your own doctor. OsteoStrong does not diagnose, treat or cure any disease.
