Maintaining a lean body or keeping weight under control is a serious challenge for many people—including celebrities. In fact, the pressure is often even higher for them, as they’re constantly in the spotlight and subjected to public judgment, both silently and openly. With fans admiring them for everything from talent to appearance, they often face intense scrutiny over how they look. But weight changes in the celebrity world don’t always come down to vanity—there are countless personal, health-related, or professional reasons behind them. This list takes a closer look at those transformations and the stories behind them. And trust us, when you reach number 11, you’ll be completely blown away by the star’s dramatic change.
1. Chris Pratt
Chris Pratt originally charmed audiences as Andy Dwyer, the fun-loving goofball on Parks and Recreation. But his entry into the Marvel Universe demanded a major change. To play the ripped, confident Star-Lord in Guardians of the Galaxy, he had to completely reinvent himself. These days, it’s tough to believe he was ever the pudgy sitcom guy—he’s now the definition of leading-man material.
2. Alec Baldwin
Alec Baldwin has been in the spotlight for years, and surprisingly, he still looks quite youthful. Over time, his appearance—and especially his physique—has shifted, largely due to a prediabetes diagnosis that pushed him to drop over 30 pounds. Regardless of the reason, it’s refreshing to see him take control of his health and shed the extra weight after years of struggling with it.
3. Mariah Carey
People often say Mariah Carey is a diva, and honestly, with her incredible career and iconic voice, she more than deserves the title. She’s been performing for almost 30 years, reaching fans worldwide with her powerful songs. Despite her time in the industry, she doesn’t seem ready to slow down anytime soon. Some years back, she had a noticeably larger frame, but she shed more than 70 pounds and got back to a healthier size. Though pregnancy with twins changed her figure, it also gave her the motivation she needed to make a positive change.
4. Rebel Wilson
Rebel Wilson rose to fame through her hilarious roles in hit comedies, but behind the scenes, she struggled with her weight and the impact it had on her self-esteem. Eventually, she reached a point where she knew she had to make a change. Seeking professional help, she underwent a challenging weight-loss program that helped her take control of her health and appearance. The results were striking—her transformation has made her nearly unrecognizable to those who remember her earlier roles.
5. Oprah Winfrey
Oprah Winfrey’s name has long been synonymous with success, and with her empire, it’s easy to assume public opinion wouldn’t matter much to her. Yet, despite her wealth and influence, she chose to take the advice of critics seriously and make a change. She joined a wellness program that helped her shape the fit and confident image she carries today. Her fans now praise not just her accomplishments, but also the resilience she displayed while achieving her healthier lifestyle.
6. Honey Boo Boo
Before we talk about her famous mother, let’s take a moment to look at Honey Boo Boo herself. She became a household name as a child, but unfortunately, her weight made her a target for constant ridicule. Many people made cruel, body-shaming jokes at her expense, which was especially unfair given her young age. Unsurprisingly, she didn’t handle the backlash very well. But after watching her mom lose close to 300 pounds, Honey Boo Boo finally felt motivated to make a change in her own life.
7. Nicole “Snooki” Polizzi
Nicole Polizzi, better known as Snooki, is one of those celebrities people either adore or criticize—but she’s always interesting. She rose to fame on Jersey Shore and later became a major Instagram personality, with more than 13.5 million followers. After having her baby in 2012, she set a goal to get back to her original size and ended up losing 100 pounds in the process. These days, she’s looking better than ever, and fans are loving her transformation.
8. Graham Elliot
There’s a common saying that skinny chefs can’t be trusted—but Graham Eliot proves that isn’t always true. The MasterChef co-host amazed fans when he appeared 150 pounds lighter after struggling with obesity for years. His journey began in 2013 when he had weight-loss surgery, but the real effort came afterward. Graham has maintained his new physique through consistent workouts, with jogging being one of his favorite ways to stay in shape.
9. Kaley Cuoco
Fans of The Big Bang Theory will instantly recognize Kaley Cuoco, but what might surprise you is her attitude toward fitness. She’s never been a big supporter of dieting and admits she isn’t thrilled about working out either. Despite that, she’s faced weight challenges over the years and says her personal trainer has played a key role in keeping her balanced. Ironically, even with her dislike for workouts, she has a soft spot for ab exercises—especially those involving a squat ball.
10. Wendy Williams
Wendy Williams gained fame as a radio host long before making her name on television. She battled weight problems for a while, but thanks to help from professional trainers, she was able to shed about 50 pounds. In an interview, Wendy explained that she decided to slim down after realizing the risk of heart disease if she didn’t make a change. Her struggle with weight started young—she said her first diet was in first grade, and it involved eating nothing but tuna and mustard for lunch.
11. Keely Shaye Smith
Keely Shaye Smith, best known as Pierce Brosnan’s wife, has opened up about her impressive weight loss transformation. After dealing with years of body image struggles and judgment from the public, she recently dropped around 120 pounds. Her success came from embracing a healthier lifestyle that included better eating habits, regular workouts, and a more balanced approach to wellness. Alongside the physical change, she also developed a more positive mindset. Keely’s journey has become a source of encouragement for others, showing that major progress is possible with persistence and self-care.
12. Khloe Kardashian
As Kim Kardashian’s younger sister, Khloe Kardashian has always lived under the glare of public attention, which made her weight struggles even more difficult. For years, she endured rude comments and was often unfairly dubbed the “fat sister,” something that understandably affected her self-esteem. Eventually, Khloe decided to make a major change, committing to a healthier lifestyle that helped her drop an impressive 50 pounds. After having her daughter, True, she didn’t let up—instead, she pushed herself to get back in shape. Khloe has said that losing her post-pregnancy weight gave her a massive confidence boost.
13. Jonah Hill
14. Celine Dion
When it comes to music legends, Celine Dion is undeniably one of the greats. Her voice has touched hearts for decades, and she’s best known for gifting the world the iconic Titanic ballad, “My Heart Will Go On.” Sadly, her world changed in 2016 when she lost her husband and longtime partner. Since then, Celine has struggled with significant weight loss, leaving many fans alarmed by her thin and fragile appearance. Although the 51-year-old singer has shown signs of progress, she still has personal battles to overcome. For now, her fans continue to offer love, support, and prayers.
15. Christina Aguilera
During her second pregnancy, Christina Aguilera put on a noticeable amount of weight. But after giving birth, she made a strong effort to shed the 30 pounds of baby weight she had gained. While she’s openly expressed love for her body at any size, she was thrilled to slim down in time for the next season of The Voice. The weight loss not only boosted her appearance but also left her feeling more energized and self-assured—just what she needed to step confidently back into her role as a coach on the show.
