SHE’S lost almost four stone since being on Mounjaro.
But there’s a side effect of the fat jabs that mum-of-two Sophie wasn’t prepared for.




She took to TikTok to explain the downside of the injections, as she said: “I’ve lost not far off four stone now, but I’ve lost something else too…”
Sophie then turned around and showed how her jeans looked from behind, as she said “there’s nothing” where her bum used to be.
“I have no ass!” she exclaimed.
“Look at her!”
She then asked for recommendations for “jeans that give you an ass”.
Sophie added that she’s bought two pairs of jeans from online retailer Halara that are on the way, but she doesn’t know if they’ll even fit.
As she modelled her current jeans, in a size 12, she pulled at the denim round the bottom and thighs to show that there’s very little filling it out.
“So yeah any advice guys, because I’ve got no ass,” she laughed.
People in the comments were quick to offer their advice, with one writing: “Tesco jeans & River Island always work wonders for me!”
“I LOVE River Island jeans!” Sophie replied.
“Think I’m going to have a nosey on Vinted for some – thanks babe!”
“Next do lift & shape jeans,” another said.
As a third recommended the “ASOS bum lift contour jeans”.
“Have you tried Tesco ones? They’re super comfy!” someone else wrote.
With Sophie responding: “Noooo I never go to the clothes section other than for the kids.
“Will have to have a nosey!”
What to do if you lose too much weight too quickly whilst on Mounjaro
IF you're losing too much weight too quickly while on Mounjaro, it’s important to take action to avoid potential health risks like muscle loss, malnutrition, dehydration, and fatigue. Here’s what you can do:
Evaluate Your Caloric Intake
Mounjaro reduces appetite, which can make it easy to eat too little. If you’re losing weight too fast (more than two to three lbs per week after the initial adjustment period), try:
Tracking your food intake to ensure you’re eating enough calories (apps like MyFitnessPal can help). Increasing protein intake to preserve muscle mass (aim for 0.6–1g per pound of body weight). Adding healthy fats and complex carbs (e.g., avocados, nuts, whole grains) for balanced energy.Adjust Your Dosage (With Doctor’s Approval)
If your weight loss is too rapid or causing side effects, your doctor may:
Pause dose increases or lower your dosage. Adjust your treatment plan to stabilise your weight loss.Strength Training & Exercise
To prevent muscle loss:
Incorporate resistance training at least two to three times per week. Stay active with low-impact exercises like walking or yoga.Hydrate & Manage Electrolytes
Drink enough water (Mounjaro can reduce thirst). Electrolytes matter – Consider adding magnesium, sodium, and potassium if you feel weak or fatigued.Monitor for Malnutrition & Deficiencies
Rapid weight loss can cause vitamin/mineral deficiencies (especially B12, iron, and electrolytes). If you experience:
Fatigue, hair loss, or dizziness, ask your doctor about supplements.Consider Further Medical Guidance
If your weight loss is excessive or causing health concerns, speak with your healthcare provider.
They might adjust your dosage, diet, or exercise plan to help stabilise your weight loss.
While Sophie has done incredibly well on her Mounjaro journey to date, her weight loss hasn’t come without criticism.
And in another TikTok, she shared some of the remarks she’s heard since she started the injections, including “Mounjaro is cheating”.
Others have accused her of “taking the easy way” of losing weight, while some say she’ll “put it all back on”.
“Don’t lose anymore, you’ll look ill!” is another one she’s heard.
But Sophie hit back as she revealed the benefits she’s found of losing weight, including the fact she’s sleeping better, has more energy and has a “healthier relationship with food”.
She’s also four dress sizes down, mentally happier, able to run around after the kids and no longer binge eating.
And one of the most important benefits – she’s “finally happy looking in the mirror”.

