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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.

Calories on Mounjaro / WLI

22 replies

ChinFluff · 02/01/2026 16:30

How many calories do you eat on Mounjaro? Just trying to get information about how it works and portion sizes.

OP posts:
RenegadeKeeblerElf · 02/01/2026 16:38

For me it varies massively depending on where in the week I am and what I'm doing. I track my calories but don't particularly limit them. Daily calories can be anywhere between 800 and 1400, usually around 1100-1300 though. I still eat normal meals (sometimes don't eat breakfast) but just healthier ones. I eat bread, pasta, rice etc but try and prioritise veg and protein if I'm getting full.

DizziLizzy · 02/01/2026 16:42

ChinFluff · 02/01/2026 16:30

How many calories do you eat on Mounjaro? Just trying to get information about how it works and portion sizes.

For me not many. I eat what I want , when I want but get full so so quickly. Yesterday mas it was NYD we had Nandos. I ordered 1/2 chicken with Peri Peri chips. I should have ordered 1/4 chicken and I barely ate any chips. Im 2 stone down with 1 to go. I haven't changed my diet.

PearlTeapot · 02/01/2026 16:43

According to nutracheck, I'm at 1200 a day. I cycle calories though and have less earlier in the week and more at weekends. I jab Sun eve but we go out for lunch Sundays and I always have whatever I want, including puddings, and a large sugary starbucks!

cobblers00 · 02/01/2026 16:54

I aim for 1200 but sometimes find it hard to fit that much food in ( 5 wks on lowest dose). I have changed diet to focus on protein & lost all interest in carbs. Sweet tooth also massively numbed. I can still eat fatty greasy food (e.g takeaway pizza) but I pay for it afterwards so now avoid it.

Periperi2025 · 02/01/2026 16:57

I've lost 3.5 stone since July on mounjaro and have never counted calories.

I have a sugar aversion, some days if i exercise more i eat more. I just listen to the appetite suppression and so long as i lost something each week at the beginning and now each month then i figure the drug is doing its job.

SprockitFarah · 02/01/2026 17:53

Hi. I've just finished my diet. 7 months. down from 15st 9lb to 10st. I thought i'd pass on a few tips. Stay on as low a dose as possible. You need to build your self will and habits. Count calories every day, every meal. I aimed for 1400 per day. (I also do a lot of excecise). The injections help massively but you also need to put in the effort. I stuck at 5, for most of the time with just two weeks at 7.5. I am now gradually reducing my dose. The pens all have 4 doses in each plus the magic dose. Each full dose is 48 clicks of the pen. To be more cost effective go up a dose pen each time you buy but then reduce the number of clicks you use. So for a 5 dose on a 10 pen only do 24 clicks. Same strength but the pen lasts twice as long. Using this method my final pen which is a 10 will last me 4 months, gradually decreasing the dose. The "magic dose" is about 1.25 of a dose. To use this buy insulin needles, amazon sell them. Get the thinnest you can. A full dose is 6 on the syringe, so again you can alter this to suit your current need. Hope this helps, happy dieting.

ThirdStorm · 02/01/2026 17:54

500 calories below my TDEE. Now I eat at my TDEE to maintain.

WeAllHaveWings · 02/01/2026 18:25

Use an online TDEE calculator to calculate your maintenance and your cutting calories as it can vary greatly depending on your stats.

My TDEE maintenance calorie's when I started was 2,403 it is now 1,674.

In the beginning I was cutting around 750 calories on average a day. Obviously it would not be sensible to do that now as it would take my calories far too low.

Thesofathatwas · 02/01/2026 18:31

Around 400-900 cals a day.

Weight either does not budge or I gain especially if I go above 1000 a day. Frightening rate of gain in fact if I stray over 1000.

MrsMiagi · 02/01/2026 18:35

SprockitFarah · 02/01/2026 17:53

Hi. I've just finished my diet. 7 months. down from 15st 9lb to 10st. I thought i'd pass on a few tips. Stay on as low a dose as possible. You need to build your self will and habits. Count calories every day, every meal. I aimed for 1400 per day. (I also do a lot of excecise). The injections help massively but you also need to put in the effort. I stuck at 5, for most of the time with just two weeks at 7.5. I am now gradually reducing my dose. The pens all have 4 doses in each plus the magic dose. Each full dose is 48 clicks of the pen. To be more cost effective go up a dose pen each time you buy but then reduce the number of clicks you use. So for a 5 dose on a 10 pen only do 24 clicks. Same strength but the pen lasts twice as long. Using this method my final pen which is a 10 will last me 4 months, gradually decreasing the dose. The "magic dose" is about 1.25 of a dose. To use this buy insulin needles, amazon sell them. Get the thinnest you can. A full dose is 6 on the syringe, so again you can alter this to suit your current need. Hope this helps, happy dieting.

Its 60 clicks for a full dose as far as I am aware. I'd stick to a pharmacy to buy syringes, not amazon.

reluctantbrit · 02/01/2026 18:35

I am on a 500kcl deficit and eat around 1200-1300 a day. I have an office job and don't exercise a lot (leg injury).

Get your TDEE and go from there.

Portion wise I do eat around 1/2 of a normal size portion. I prioritise protein and veg to carbs but love pasta so that needed to be reduced from 3x a week to 1x.

I eat 3 meals a day as we eat as a family and I love cooking so do most meals.

MrsMiagi · 02/01/2026 18:37

Thesofathatwas · 02/01/2026 18:31

Around 400-900 cals a day.

Weight either does not budge or I gain especially if I go above 1000 a day. Frightening rate of gain in fact if I stray over 1000.

How do you manage to get all the nutrients and protein etc you need on so little calories?

SexyFrenchDepression · 02/01/2026 18:40

MrsMiagi · 02/01/2026 18:35

Its 60 clicks for a full dose as far as I am aware. I'd stick to a pharmacy to buy syringes, not amazon.

Yes 60 clicks for a full dose of mounjaro. I was told you can't guarantee they syringes are sterile if buying from amazon. They look to be pretty cheap in the online pharmacies anyway, as are the swabs.

SexyFrenchDepression · 02/01/2026 18:44

MrsMiagi · 02/01/2026 18:37

How do you manage to get all the nutrients and protein etc you need on so little calories?

The nutrients you need will depend on your weight anyway, I am currently just at top of healthy BMI and weigh 66kg, to lose a decent amount of weight I need less than 1000 calories but within that I need about 120g protein. I aim for 50% protein, 20% carbs and 30% fat. My maintenance calories are only about 1500.

cobblers00 · 02/01/2026 18:45

@SprockitFarahIm interested in this ‘count the clicks’ cost effective route but thought the pens only had a fridge life of 30 days - also can anyone point me to a good video tutorial of how you syringe out extra doses? Thx!

Thesofathatwas · 02/01/2026 18:50

I use MFP to track and try to get in nutrition and protein, it’s really helpful.
I can see what I need to eat to fulfill healthy balance. Also take a multivitamin with iron for an extra boost.

SexyFrenchDepression · 02/01/2026 18:52

cobblers00 · 02/01/2026 18:45

@SprockitFarahIm interested in this ‘count the clicks’ cost effective route but thought the pens only had a fridge life of 30 days - also can anyone point me to a good video tutorial of how you syringe out extra doses? Thx!

Technically you are only supposed to use the pens for 30 days once opened, they do not have to be kept in the fridge for these 30 days, the instructions explain the storage guidelines. This will give you the 4 normal doses plus a golden dose (day 1 is dose 1, day 29 is dose 5). The pens need to be kept in the fridge whilst unopened and have a long shelf life.

Many people use them past the 30 days, some countries prescribe it this way also, it is not the guidance in the UK though. If using it past the 30 days then storage and hygiene is extremely important plus checking the pen to ensure that the liquid isnt cloudy etc.

I have read up lots on it and its a risk I'm willing to take.

https://youtube.com/shorts/FlxJl8gnyTY?si=XpibpzDzfQREITFn

MatchaTea1 · 02/01/2026 18:56

I've been on 2.5mg for about 6 months and it is working for me albeit slowly. I didn't want to risk the hair loss and muscle mass loss which can happen with going for a higher dose and losing weight more rapidly. Anyway I stick to 1000-1250 calories a day and am down two dress sizes since June.

katand2kits · 02/01/2026 19:41

I eat about 1700 per day. Current weight is just over 90kg. I may need to reduce this slightly as I get nearer the end. On 1700 I have lost 22kg in a year.

DizziLizzy · 02/01/2026 20:52

SprockitFarah · 02/01/2026 17:53

Hi. I've just finished my diet. 7 months. down from 15st 9lb to 10st. I thought i'd pass on a few tips. Stay on as low a dose as possible. You need to build your self will and habits. Count calories every day, every meal. I aimed for 1400 per day. (I also do a lot of excecise). The injections help massively but you also need to put in the effort. I stuck at 5, for most of the time with just two weeks at 7.5. I am now gradually reducing my dose. The pens all have 4 doses in each plus the magic dose. Each full dose is 48 clicks of the pen. To be more cost effective go up a dose pen each time you buy but then reduce the number of clicks you use. So for a 5 dose on a 10 pen only do 24 clicks. Same strength but the pen lasts twice as long. Using this method my final pen which is a 10 will last me 4 months, gradually decreasing the dose. The "magic dose" is about 1.25 of a dose. To use this buy insulin needles, amazon sell them. Get the thinnest you can. A full dose is 6 on the syringe, so again you can alter this to suit your current need. Hope this helps, happy dieting.

Congratulations on reaching target! Although I think you have your click count wrong?! I thought it was 60 for a full dose and then 30 for half the original and 15 for a quarter? So if you have for example a 10mg pen: 60= 10, 30= 5 and 15 2.5? Im with you on the theory though.

averychoc · 03/01/2026 09:11

Thesofathatwas · 02/01/2026 18:31

Around 400-900 cals a day.

Weight either does not budge or I gain especially if I go above 1000 a day. Frightening rate of gain in fact if I stray over 1000.

Sounds dangerous to me.

averychoc · 03/01/2026 09:13

I eat about 1600 a day, have lost 8 stone and while the loss is much slower now (around 0.5lb a week) it’s still coming off and I’m really happy with the result. I was losing far too quickly in the early days of MJ and couldn’t eat very much for a few weeks. I hated it and almost stopped because I was as out of control not being able to eat much as I had been when I was overeating.

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