From Amy Schumer to tennis ace Serena Williams – the celebrity fat jabbers flaunting their shrinking waists this summer

NEARLY four million Britons have used weight-loss jabs, with dozens of well-known famous faces proudly flaunting their shrinking bodies this summer. Although some stars, such as Kylie Jenner and Alison Hammond, have strictly denied being on the weight loss medication, other celebs have admitted to resorting to a helping hand using fat jabs, such as Mounjaro and Wegovy. Amy Schumer snapped in 2024 before embarking on a weight loss journey Credit: Getty The comedian and actress, 45, had shed an incredible 50lbs after trying both Ozempic and Mounjaro Credit: amyschumer / instagram The effects have often been dramatic, with some hailing the jabs as “life-changing” and “effortless”. But while some people have been open about nasty side effects like nausea and gallbladder issues, it’s clear that losing the excess pounds has been a huge confidence boost – one they share in bikini-clad snaps with their millions of followers on Instagram. Here we look at just some of the celebrities who’ve been stripping off to beat the heat – and also show off their head-turning makeovers… She built up a loyal fanbase thanks to her honest confessions – so it’s no surprise that Amy Schumer hasn’t held back when it comes to talking about her use of weight loss injections, too. The comedian and actress, 45, has shed an incredible 50lbs after trying both Ozempic and Mounjaro. In 2023, the star confessed she had first tried Ozempic “about a year ago”; however, the medication hadn’t agreed with her. She said on Watch What Happens Live with Andy Cohen: “I was one of the people that felt sick, I couldn’t play with my son. You’re like, ‘OK, this isn’t liveable for me,’ but I immediately invested because I’m like ‘everyone and their mum is going to try it’.” In 2025, Amy then revealed she was back on the weight loss jabs, and said: “Mounjaro’s been great… I’m having a really good experience with it, and I wanted to keep it real with you about that.” Amy, who filed for divorce from husband Chris Fischer earlier this year, has since lost more than three stone, recently showing off her slender figure on a boat. “I never knew there would be days like this. No filter as per,” the mum-of-one penned in the caption. And as for her fellow stars, Amy is convinced – they’re all on fat jabs, whether they admit it or don’t. She claimed: “Everybody (is) lying, everyone’s like, ‘Oh, smaller portions,’ like shut the f*** up, you’re on Ozempic or one of those things. Just be real with the people.” Gemma Collins Legendary TOWIE icon Gemma Collins, seen here in 2018, embraced her curvy figure for more than a decade Credit: Getty Images – Getty Praising the drugs, the 45-year-old exclusively told The Sun last year that weight loss jabs have transformed her life Credit: gemmacollins/Instagram Legendary Towie icon Gemma Collins embraced her curvy figure for more than a decade. But after reaching her heaviest – 23 stone and a 26 dress size – the reality TV star was left unable to roll over in bed. After years of yo-yo diets, in 2025, Gemma shared how she used NHS-approved Mounjaro injections, and dropped a total of three-and-a-half stone, slimming down to a size 22. Praising the drugs, the 45-year-old exclusively told The Sun last year that weight loss jabs have transformed her life. Gemma told The Sun: “I can’t believe I’ve finally found something that works. It’s been completely effortless – I don’t even want to eat anymore! “I got on the scales and lost something like six kilograms in my first week…It’s been effortless.” And in true Gemma Collins style, the media personality has flaunted her stunning new figure in several recent holiday snaps, including one by the pool in a skin-tight swimsuit. Lizzo The Truth Hurts hitmaker seen in 2024 before shedding 60lbs with fat jabs Credit: Getty Lizzo – real name Mellissa Viviane Jefferson – appears to be proud of her weight loss journey, which has seen her lower her BMI by 10.5 points Credit: Instagram/lizzobeeating She skyrocketed to worldwide fame thanks to her breakout hit Truth Hurts and her body-confident attitude alongside her head-turning curves. But last year, Lizzo, 38, admitted that Ozempic was behind her incredible 60lb weight loss transformation. In a chat on Trisha Paytas’ Just Trish podcast, the About Damn Time songstress said she had “tried everything” in her health mission, ultimately resorting to the weight loss drug in 2023. Lizzo – real name Mellissa Viviane Jefferson – appears to be proud of her weight loss journey, which has seen her lower her BMI by 10.5 points. But, while the Michigan-born star was urged by fans not to “get too skinny”, Lizzo has flaunted her more svelte figure on Sports Illustrated, rocking a sexy bikini. Recently, she also soaked up the sun looking as fabulous as ever in a skimpy bikini. Meghan Trainor Meghan Trainor performing at LA Pride 2019, before her weight loss Credit: Getty After much speculation, the 32-year-old revealed she was becoming the “healthiest version of herself” for her three kids Credit: Getty All About That Bass sent us all wild on the dancefloor – it was a catchy tune about body positivity. Now, more than a decade after the song catapulted Meghan Trainor to fame, she has given herself a makeover, losing more than four stone following the use of Mounjaro. After much speculation, the 32-year-old has revealed she was becoming the “healthiest version of herself” for her three kids. The former Voice coach shared: “I’ve worked with a dietician, made huge lifestyle changes, started exercising with a trainer, and yes, I used science and support (shoutout to Mounjaro!) to help me after my 2nd pregnancy. And I’m so glad I did because I feel great.” According to the hitmaker, she used the weight loss method alongside her husband, Spy Kids actor Daryl Sabara, and regularly posts her slimmer frame on Instagram. Some fans have even struggled to recognise her. Rebel Wilson Rebel Wilson on the red carpet in 2011 in Sydney, Australia Credit: Getty After shedding over five stone in 2021, Rebel Wilson revealed she had turned to the popular drugs Credit: Rebel Wison/Instagram Many people speculated Rebel Wilson had used weight loss jabs after she lost a whopping 5st 7lbs back in 2021. The Pitch Perfect icon, 46, previously claimed to have successfully reached her 11st 7lbs goal weight through high-intensity interval workouts and long hikes, complemented by a high-protein, low-sugar diet. However, in 2024, she told The Sunday Times she’d briefly used Ozempic to lose some weight – but is no longer taking the drug. She said: “Someone like me could have a bottomless appetite for sweets, so I think those drugs can be good. “I feel strongly that young women shouldn’t try to obsess over looking like Victoria’s Secret models – they should just look like themselves. “I know that my relationship with food is complicated.” The Australian actress, who suffers from polycystic ovarian syndrome, a condition which affects fertility, originally decided to slim down following advice from her IVF doctor in 2019. But due to her trope of playing “fat funny characters” in Hollywood films, she felt her weight loss wasn’t welcomed by her industry peers. She said: “Basically no one apart from my mum wanted me to lose weight. “People thought I’d lose my pigeonhole in my career – playing the fat funny character – and they wanted me to continue in that.” Serena Williams Serena snapped on the red carpet in 2021 Credit: Getty The legendary tennis icon looking as incredible as ever this year Credit: http://www.instagram.com/serenawilliams/ Tennis legend Serena Williams has experienced 31lbs of weight loss with the aid of jabs. Oozing confidence in a khaki swimsuit, the Michigan-born 44-year-old wrote on Instagram earlier this year: “I am not perfect….but I’m perfectly me. “Take out time today to celebrate being perfectly you!” The Wimbledon champion shared how she had tried to lose weight naturally after she welcomed her two daughters – born in 2017 and in 2023 – but eventually sought medical help. Although the tennis player was hesitant at first, Serena revealed she has shed over two stone thanks to a weight loss drug called Zepbound, which is similar to medications like Ozempic that have become increasingly popular. Serena, whose husband insists she still eats healthy and works out, told People Magazine at the time: “I did a lot of research on it. I was like, ‘Is this a shortcut? What are the benefits? What are not the benefits?’ “I really wanted to dive into it before I just did it.” Kendra Wilkinson Kendra Wilkinson first shot to fame as a Playboy bunny Credit: Getty The I’m A Celebrity star recently wowed her Instagram followers with a snap flaunting her weight loss Credit: Instagram/ @kendrawilkinson Kendra Wilkinson first shot to fame as one of the three main live-in girlfriends at Hugh Hefner’s Playboy Mansion. But while many young women at the time thought life in the notorious pad was the ultimate dream, Kendra has since candidly spoken out about what really happened behind closed doors – including being told by the late magazine mogul she should go “to the gym”. Following her time on The Girls Next Door, Kendra, now 41, has dropped a whopping four dress sizes after jumping on the fat jab trend. The former Playboy model-turned real estate agent started taking weight loss injections in March and feels better than ever. Oozing confidence in a red two-piece, the I’m A Celebrity star told her three million Instagram followers: “Hey guys, I am three months in with my GLP1 journey with Effecty and I couldn’t feel more amazing and more confident in my body. “I am so excited. The results are showing. I feel amazing.” Kendra captioned the post: “I feel so good in my body right now. Like actual summer ready, not the fake kind. “And a big part of that has been GLP1s done right.” Last month, the mum-of-two shared that she’d “lost so much weight” after fitting into some old jeans. And an intrigued fan wanted to know how much she had shed, to which she confessed on Instagram: “I haven’t stepped on a scale. “I go by the fit of my clothes and old clothes. Was on my way to size 10. Now I’m less than a size 6.” Speaking about why she wanted to use the medication to lose weight, Kendra previously told US Weekly: “There’s nothing worse than being in a gym every single day, working out and not seeing any progress. “I hit 40. I’m happy. I’m at peace, but I noticed that my jeans are a little tighter lately, so I don’t want to go out and shop anymore. Mama is on a budget, so I have to fit back in my jeans. “So I actually signed up for a shot company that will be delivering my shot next week. So I’ll start my journey next week.” 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. 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 Wegovy is controlled through specialist weight loss clinics, while Mounjaro is available from GPs but only for the highest risk patients. For Wegovy, a patient will typically 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. They will be expected to have tried diet and exercise already. Mounjaro is available from NHS GPs for weight loss but only to a tiny group of patients, with the rollout starting with those with a BMI higher than 40 and with four weight-related health conditions. 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.