Gemma Collins weight loss has been an ongoing journey since she started using Mounjaro in November 2024. The former TOWIE star has lost several stone in total, going from a size 26 to a size 20 within the first three months alone. She’s continued losing weight since, despite a painful gallbladder complication along the way.
How Much Weight Has Gemma Collins Lost?
Gemma has shared her progress in stages rather than one final total. Within three months of starting Mounjaro, she’d dropped from a size 26 to a size 20. She later reported a three-stone loss, then an additional stone and four pounds (18 lbs) on top of that. During a stint on I’m A Celebrity, she also reported losing 1 stone 4 lbs (8kg) during her time in camp, partly due to rationed food.
Why Gemma Collins Started Taking Mounjaro
Gemma began using the NHS-approved medication in November 2024, at age 44. She’s described it as changing her relationship with food entirely, saying there’s “no food noise anymore.” She’s also framed her decision partly around reducing pressure on the NHS by avoiding obesity-related health problems, saying she’s glad the medication became available before more damage was done to her health.
The Gallbladder Complication
In August 2025, Gemma experienced a gallbladder attack, which she described to the Daily Mail as “agonising.” She wasn’t certain whether it was directly linked to Mounjaro. Gallbladder issues, including gallstones, are a recognised possible side effect of rapid weight loss generally, not just with GLP-1 medications specifically, since fast fat loss can affect how the gallbladder processes bile.
Continuing Treatment After the Side Effect
Despite the complication, Gemma has continued taking Mounjaro and reported further weight loss afterwards. She’s said she’s been increasing her exercise alongside the medication, and has been clear that she isn’t putting excessive pressure on herself around the process. “It didn’t take you five minutes to gain it, and it’s not going to take you five minutes to lose it,” she’s said.
What Gemma Collins’ Story Highlights
- Weight loss with GLP-1 medications can continue over many months, with progress often shared in stages rather than a single dramatic reveal.
- Side effects like gallbladder complications are a real, recognised risk of rapid weight loss and are worth discussing with a prescriber if they occur.
- Continuing treatment after a side effect is a decision to make with medical guidance, not something to determine alone.
- Pairing medication with increased exercise, rather than relying on the injection in isolation, is a pattern seen across many public accounts.
FAQs About Gemma Collins’ Weight Loss
How much weight has Gemma Collins lost?
She’s reported losing several stone in stages since November 2024, including an initial three-stone loss followed by a further stone and four pounds.
What weight loss injection does Gemma Collins use?
She uses Mounjaro, which she began taking in November 2024.
Did Gemma Collins have side effects from Mounjaro?
Yes, she experienced a gallbladder attack in August 2025, which she said may or may not have been linked to the medication.
Is Gemma Collins still taking Mounjaro?
Yes, she has continued treatment and reported further weight loss since the gallbladder complication.
