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GLPs and cartilage regeneration

9 replies4 peopleJun 11, 2026☆ Follow
Summary

Do GLP-1 drugs regenerate cartilage or only help joints through weight loss?

Users discuss whether GLP-1 medications like tirzepatide or retatrutide improve joints via direct cartilage regeneration due to GLP-1 receptors. One person shares a video claiming an MD sees non-weight-loss benefits from microdosing. Personal reports are mixed: some note ongoing knee or hip pain despite major weight loss, while others mention supplements or triggers like certain acids affecting symptoms. A cited study found only modest 17% improvement when GLP-1s were combined with hyaluronic acid injections.

What this discussion establishesWhere people disagree

Some believe direct regeneration occurs while others attribute any relief mainly to reduced joint stress and note limited natural cartilage regrowth capacity

Still open

Whether microdosing GLP-1s produces meaningful cartilage repair in humans beyond the modest study results

Nothing here is advice.

9 replies · 4 people
SlowLedger21archiveopening postJun 11

I came across a video about these meds and wanted to pass it along. It claims cartilage has GLP1 receptors so any joint gains come from actual regeneration rather than just less body weight pressing down. The doctor in it uses small doses specifically for benefits besides weight reduction.

ClearMeadow20archiveJun 11

Yeah I don’t know. I had a hip replacement almost 3 years ago. The surgeon figured my other hip had about 10 years before it needed attention. Now after 8 months on Reta and losing 120 pounds I’m starting to feel the first signs of arthritis pain in it. Could be from the extra activity and fitness though.

SlowLedger21archiveJun 11
↳ replying to @ClearMeadow20

Oh no that’s not good. Are you running or doing exercises that load the joints? I have family history of arthritis and bad hips. When I took up running in 2020 because gyms were closed I got severe hip pain and had to quit.

ClearMeadow20archiveJun 11

No I’m not a runner. My cardio is all cycling walking or elliptical. I’m a pretty fit 46 year old. It’s really disappointing to feel those first waves of pain starting.

SlowLedger21archiveJun 11
↳ replying to @ClearMeadow20

We’re the same age. The elliptical and bike don’t bother me at all but long walks sometimes do for some reason. I take lots of supplements besides the peps to help with my hip pain. They found my uric acid was high and some acidic foods set it off so I worked out what triggers it. I have to avoid anything with white vinegar though ACV is fine. Acetic and malic acid really flare me up so bad the pain keeps me from sleeping on that side. Hope you can find what helps and get some relief.

NorthPebble46archiveJun 11
↳ replying to @SlowLedger21 (opening post)

There’s another video that goes over this too.

NorthPebble46archiveJun 11

Back around 2006 doctors fixed my torn ACL. For the past couple years I've been taking Tirzepatide. Even now my knee aches whenever the air turns damp or it starts raining. This is just what I've noticed myself. If the pain eases I'll mention it later.

AmberTimber37archiveJun 27

I came across research examining GLP1s for cartilage recovery which also incorporated hyaluronic acid. They observed only slight improvement at approximately seventeen percent. This likely isn't genuine regrowth because losing weight decreases pressure on the cartilage making it expand somewhat. The cartilage doesn't regenerate much by itself naturally.

NorthPebble46archiveJun 27
↳ replying to @AmberTimber37

Just wondering about the way you applied the hyaluronic acid. Appreciate any details!

AmberTimber37archiveJun 27
↳ replying to @NorthPebble46

I had the acid injected straight into my knee joint. On its own it left the cartilage unchanged, yet mixing it with GLP1 produced an improvement.

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