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Mounjaro weight gain

3 replies

GetInMyBelly69 · 22/04/2026 16:48

I have been on Mounjaro nearly a yr now and lost 4 stone so far . I’m on 15mg now , as I didn’t realise that I should stick to what works and not just increase it . My problem is this week my tummy has swollen and so have my legs ( almost water retentive ) and I jumped on the scales , only to find I have put on 4lb in two weeks . I only weigh myself each month to order the next dose so I don’t know if this has been gradual or come on just this week .
I was wondering if anyone has had this happen , and if so what did they find worked to reduce the weight again ?
also does anyone have any ideas on how to get rid of excess water please .

OP posts:
Easylifeornot · 22/04/2026 16:49

I think those symptoms are worrying and you should see your GP.

Incandescentangel · 22/04/2026 16:50

You need to speak to your doctor.

MrsMiagi · 22/04/2026 16:56

Sudden swelling is something that needs to be discussed with a doctor i'd say. It doesn't seem mounjaro related.
Water retention can happen if you have eaten salty food but this sounds more extreme than that

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