A WOMAN who went on Mounjaro to lose weight has been forced to quit after suffering horrendous hair loss.
Carrie initially took to TikTok to bemoan how much her hair has thinned out since starting on the fat jabs, as she said: "No one tells you this, but if you're thinking about going on Mounjaro think again.
"Because you have to choose between your hair and your weight."
She added that she's "chosen to be chubby with hair rather than skinny and bald".
"Just because I don't suit being bald. I tried that TikTok filter and it's just not..."
"Chubby with hair," she captioned her video.
And the comments section was immediately filled with people weighing in, with many agreeing with Carrie.
"Mounjaro left me with 3 strands of hair!!" one wrote.
"I’ve been on it 3 months and I’ve been taking vitamins from the doctors," another added.
"I’ve still got really bad hair loss, I’m hoping it gets better."
"I said this!!!! I said my hair is thin and not growing anymore!" a third admitted.
"I lost almost half my hair, I started taking collagen and bought expensive ish shampoo and conditioner," someone else wrote.
Doc gives advice on how to tackle Mounjaro side effect of excess loose skin
"Barely lose hair now!"
"I hear you girl, I lost so much hair. But now I’m skinny and trying to grow it back," another added.
However, others accused her of "scaremongering", with one insisting they'd lost five stone and "not one hair".
"Not true. I have lost 140lb and I have LOADS of hair - ungodly amounts," another added.
"Stop spreading misinformation!" someone else commented.
"Not only do I work in the pharmaceutical industry but I’m on Mounjaro.
Everything you need to know about fat jabs
Weight loss jabs are all the rage as studies and patient stories reveal they help people shed flab at almost unbelievable rates, as well as appearing to reduce the risk of serious diseases.
Wegovy – a modified version of type 2 diabetes drug Ozempic – and Mounjaro are the leading weight loss injections used in the UK.
Wegovy, real name semaglutide, has been used on the NHS for years while Mounjaro (tirzepatide) is a newer and more powerful addition to the market.
Mounjaro accounts for most private prescriptions for weight loss and is set to join Wegovy as an NHS staple this year.
How do they work?
The jabs work by suppressing your appetite, making you eat less so your body burns fat for energy instead and you lose weight.
They do this my mimicking a hormone called GLP-1, which signals to the brain when the stomach is full, so the drugs are officially called GLP-1 receptor agonists.
They slow down digestion and increase insulin production, lowering blood sugar, which is why they were first developed to treat type 2 diabetes in which patients' sugar levels are too high.
Can I get them?
NHS prescriptions of weight loss drugs, mainly Wegovy and an older version called Saxenda (chemical name liraglutide), are controlled through specialist weight loss clinics.
Typically a patient will have to have a body mass index (BMI) of 30 or higher, classifying them as medically obese, and also have a weight-related health condition such as high blood pressure.
GPs generally do not prescribe the drugs for weight loss.
Private prescribers offer the jabs, most commonly Mounjaro, to anyone who is obese (BMI of 30+) or overweight (BMI 25-30) with a weight-related health risk.
Private pharmacies have been rapped for handing them out too easily and video calls or face-to-face appointments are now mandatory to check a patient is being truthful about their size and health.
Are there any risks?
Yes – side effects are common but most are relatively mild.
Around half of people taking the drug experience gut issues, including sickness, bloating, acid reflux, constipation and diarrhoea.
Dr Sarah Jarvis, GP and clinical consultant at patient.info, said: “One of the more uncommon side effects is severe acute pancreatitis, which is extremely painful and happens to one in 500 people.”
Other uncommon side effects include altered taste, kidney problems, allergic reactions, gallbladder problems and hypoglycemia.
Evidence has so far been inconclusive about whether the injections are damaging to patients' mental health.
Figures obtained by The Sun show that, up to January 2025, 85 patient deaths in the UK were suspected to be linked to the medicines.
"Any kind of weight loss can make your hair go into Telogen phase (the resting and shedding stage of the hair growth cycle).
"It’s only temporary not permanent and taking vitamins will help!"
Carrie further opened up about her hair loss to Fabulous Online, as she said it began in her second month of being on Mounjaro, when she was on a dose strength of 5mg.
And when she moved up to 7.5mg in her fourth month, she saw the most hair loss.
"I have come off it and hoping my hair grows back but I would never take it again," she sighed.
"I’ve always had good hair, nails and gums.
"It affected all three of those near enough instantaneously."
Not only that but Carrie "only fluctuated by a few pounds the whole time" she was on it.
"I’m not the only one by far that this has happened to, thousands of women agree with me," she said, adding: "But I understand the treatment works for some."
