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Weight loss injections/treatments

Discuss weight-loss injections and treatments, including personal experiences. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any treatments.

Lost 2lb a week for 2 months but now seem to be stuck

29 replies

ScalesWontShift · 31/05/2026 07:23

Just wondered if anyone had some advice please. I started 2.5 MJ 10 weeks ago. Had a few minor side effects but mainly all good and I steadily lost 1 stone in 7 weeks. Since then I haven’t changed my eating at all, still weigh and log everything and prioritise protein, fibre etc. but my weight loss has completely stopped.

I averagely eat 1200-1450 cals per day and I exercise plus walk a good amount so burn a reasonable amount. I should be in 700-1000 deficit every day depending what exercise I did. I’m stuck at 12 stone 2, target is 10 stone 10 so it’s not just a stubborn last few lb. I’m 5’7 and 45 if it’s relevant.

I didn’t want to move to the 5 mg dose because I don’t need more suppression iyswim. I wouldn’t mind 1lb a week loss but 2 weeks with no loss is so frustrating. Any tips?

OP posts:
Manchestermummax2 · 31/05/2026 08:22

Mounjaro does a lot more you than just suppress your appetite, the GLP-1 hormone will be working away with your blood sugars and digestion.
Dont keep paying for no results, you can always click count and try 3.75mg to start with if you want.

daffodilandtulip · 31/05/2026 08:24

Is the exercise new? If so, and with the increased protein, you may just be gaining muscle. Do you measure yourself, you’ve probably lost inches still. Would also agree to go up a dose.

RoseField1 · 31/05/2026 08:24

2 weeks isn't long enough to worry about - if your calorie counting is on point and you're meeting your macros then the weight will drop, trust the process

RoseField1 · 31/05/2026 08:26

daffodilandtulip · 31/05/2026 08:24

Is the exercise new? If so, and with the increased protein, you may just be gaining muscle. Do you measure yourself, you’ve probably lost inches still. Would also agree to go up a dose.

Honestly she's unlikely to be gaining muscle in significant quantities especially not enough to counterbalance 2lb a week fat loss - it's very difficult to gain muscle in calorie deficit especially at the weight OP is - can be done at the start of an exercise regime if a person has a lot of excess body fat but even so for a woman in calorie deficit it will be limited to 1-2lb a month max.
However the exercise is probably causing water retention which will mask fat loss on the scales.

Icanthinkformyselfthanks · 31/05/2026 08:39

@ScalesWontShift , some people have managed to lose all their weight on 2.5mg but the manufacturer doesn’t consider this to be a therapeutic dose. As has previously been pointed out Mounjaro is not an appetite suppressant although that is a happy side effect for many. Bite the bullet and buy the 5mg pen, count clicks and go up to 3.75 if you don’t want to go straight to 5mg. I have lost six stone on MJ but I had to get all the way to 15mg, I’m currently maintaining but have only managed to get down to 7.5mg, I’d love to get my maintenance dose down to 5mg but everyone’s metabolism is different, we can’t tell the drug what dose we want to be on it doesn’t work that way.

MrsPepperpotty · 31/05/2026 08:42

Personally I'd give it another week OP, then if you're still not losing go up to 5mg.

Notsosweetcaroline · 31/05/2026 08:44

daffodilandtulip · 31/05/2026 08:24

Is the exercise new? If so, and with the increased protein, you may just be gaining muscle. Do you measure yourself, you’ve probably lost inches still. Would also agree to go up a dose.

That’s so difficult to do in a defecit as to be near impossible for mere mortals.

ScalesWontShift · 31/05/2026 09:23

Thanks for the comments it’s all helpful. I don’t think I’ll have gained muscle from a few weight sessions but maybe there’s water retention. It’s just disheartening to have no movement in the scales. I’m also mid cycle so no explanation from period bloat. The post about appetite suppression not being the point of MJ is interesting because we’re always told calories in vs calories out so in my current deficit I should be losing regardless of the MJ dose or so I thought but I’ll take the advice onboard and see about increasing dose.

OP posts:
KrazyKatty · 01/06/2026 10:33

It’s perfectly normal to have mini plateau’s when losing weight and a couple of weeks is nothing. If you’re still getting suppression at 2.5mg, I wouldn’t necessarily move up until your plateau has lasted another couple of weeks. Otherwise, you could try moving up slowly in increments of 0.5mg using click counting as a jump to 5mg might be too much in one go.

davidleo · 01/06/2026 11:34

ScalesWontShift · 31/05/2026 07:23

Just wondered if anyone had some advice please. I started 2.5 MJ 10 weeks ago. Had a few minor side effects but mainly all good and I steadily lost 1 stone in 7 weeks. Since then I haven’t changed my eating at all, still weigh and log everything and prioritise protein, fibre etc. but my weight loss has completely stopped.

I averagely eat 1200-1450 cals per day and I exercise plus walk a good amount so burn a reasonable amount. I should be in 700-1000 deficit every day depending what exercise I did. I’m stuck at 12 stone 2, target is 10 stone 10 so it’s not just a stubborn last few lb. I’m 5’7 and 45 if it’s relevant.

I didn’t want to move to the 5 mg dose because I don’t need more suppression iyswim. I wouldn’t mind 1lb a week loss but 2 weeks with no loss is so frustrating. Any tips?

This is really common a lot of people hit a stall after the initial faster loss. It doesn’t always mean fat loss has stopped; sometimes it’s water retention, hormonal changes, or your body just adapting after a big drop.
If everything is still tracked accurately, it might be worth looking at weekly averages instead of day-to-day weigh-ins, and giving it a bit more time before changing anything. Sometimes the scale just lags behind what’s actually happening.

maz99 · 05/06/2026 02:25

Maybe the large deficit is too much for your body and has slowed the weight loss.

If I was you, I would reduce yhe deficit to 500... it's better to have a regular smaller loss than nothing at all.

ScalesWontShift · 05/06/2026 07:04

Thanks for the suggestions, it’s another 12.2 on the scale this morning. Honesty it's almost comical as if they’re broken because they haven’t even fluctuated on a daily basis which they normally would if I was retaining water or whatever. But they’re not broken because they show a diff weight if I step on holding something.

Jab day is tomorrow and I’m trying to decide whether to increase my dose a bit, stay at 2.5 or miss the dose entirely.

OP posts:
Didimum · 05/06/2026 07:20

Plateaus of up to 8 weeks are normal with weight loss, OP. It’s very annoying but you just have to keep consistent and push through.

RoseField1 · 05/06/2026 07:24

maz99 · 05/06/2026 02:25

Maybe the large deficit is too much for your body and has slowed the weight loss.

If I was you, I would reduce yhe deficit to 500... it's better to have a regular smaller loss than nothing at all.

That's not how bodies work!

MrsPepperpotty · 05/06/2026 07:26

Why would you miss the dose entirely?

LoSlo3toGo · 05/06/2026 08:39

Personally I’d stick with your current dose for at least another week to see how you go : weight stalls are common and sometimes there is a ‘lag’ where you get no loss for a couple of weeks then overnight scales drop eg 4 pounds

If you really want to go up, count clicks to 3 or something, if you are feeling the effects then no point doubling the dose and risking side effects

maz99 · 05/06/2026 09:10

RoseField1 · 05/06/2026 07:24

That's not how bodies work!

Actually, that's exactly how healthy metabolisms work.

Eating under your BMR for a long period of does cause issues with weight loss.

That is a fact.

Rosetime · 05/06/2026 09:28

ScalesWontShift · 05/06/2026 07:04

Thanks for the suggestions, it’s another 12.2 on the scale this morning. Honesty it's almost comical as if they’re broken because they haven’t even fluctuated on a daily basis which they normally would if I was retaining water or whatever. But they’re not broken because they show a diff weight if I step on holding something.

Jab day is tomorrow and I’m trying to decide whether to increase my dose a bit, stay at 2.5 or miss the dose entirely.

You have good enough suppression and satiety, no need to increase your dose. Increasing Mj or Wgvy dose doesn't mean it magically starts getting rid of weight. It works by appetite suppression and early satiety which makes you eat less.
Plateaus are normal in weight loss... and can last up to 5 weeks. After which a lot of people get a loss which is popularly described as a 'whoosh'. Whoosh is a 'big' drop.
Trust the process. Ensure you continue to be in deficit, prioritise protein -1g for every kg of weight you are, drink at least 2 litres of water a day, have good sleep and trust the process.
You are losing fat, it is just masked by other factors while the body does it metabolic recalibration to recognise the new occurences (you were not regularly losing weight every week about 11 weeks ago).
Your body is working as it should.

RoseField1 · 05/06/2026 11:30

maz99 · 05/06/2026 09:10

Actually, that's exactly how healthy metabolisms work.

Eating under your BMR for a long period of does cause issues with weight loss.

That is a fact.

Cite your sources please.
And please note that BMR is not TDEE. A person can eat in a calorie deficit without going below their BMR very easily

maz99 · 05/06/2026 11:43

RoseField1 · 05/06/2026 11:30

Cite your sources please.
And please note that BMR is not TDEE. A person can eat in a calorie deficit without going below their BMR very easily

I do know the diffetence between BMR and TDEE unlike a lot of people on here.

Most people on here seem to pick a calorie allowance out of the sky without even considering their BMR.

1000 calories a day for a daily allowance is very likely to be lower than a person's BMR - unless the person is quite short.

And more so if they're doing a lot of exercise on top.

Atalosswhat2do · 05/06/2026 11:56

maz99 · 05/06/2026 11:43

I do know the diffetence between BMR and TDEE unlike a lot of people on here.

Most people on here seem to pick a calorie allowance out of the sky without even considering their BMR.

1000 calories a day for a daily allowance is very likely to be lower than a person's BMR - unless the person is quite short.

And more so if they're doing a lot of exercise on top.

Wow, you really don’t have to be so rude. You have no idea what knowledge people have, and you certainly don’t have to attack people for pointing out your ‘reduce your deficit’ comment is counterproductive to weight loss.

maz99 · 05/06/2026 12:00

Atalosswhat2do · 05/06/2026 11:56

Wow, you really don’t have to be so rude. You have no idea what knowledge people have, and you certainly don’t have to attack people for pointing out your ‘reduce your deficit’ comment is counterproductive to weight loss.

😂😂😂😂

KrazyKatty · 05/06/2026 12:03

maz99 · 05/06/2026 12:00

😂😂😂😂

Looking at the posts she’s replying to, I don’t think maz was the rude one here. 🤔

RoseField1 · 05/06/2026 17:15

maz99 · 05/06/2026 11:43

I do know the diffetence between BMR and TDEE unlike a lot of people on here.

Most people on here seem to pick a calorie allowance out of the sky without even considering their BMR.

1000 calories a day for a daily allowance is very likely to be lower than a person's BMR - unless the person is quite short.

And more so if they're doing a lot of exercise on top.

OP is not eating 1000 calories a day?

maz99 · 05/06/2026 17:21

KrazyKatty · 05/06/2026 12:03

Looking at the posts she’s replying to, I don’t think maz was the rude one here. 🤔

Thanks

All I'm trying to do is give a different perspective

If the 'traditional' way of losing weight isn't working, wouldn't it be a good idea to consider the reasons why?