Celebrities have the ability to both lose and gain weight fairly quickly because of personal trainers and highly trained nutritionists. Sometimes they do it for a role in a movie or show, and sometimes they do it for their own personal goals. Either way, there are always some celebs who take it to the extreme– here are 15 shocking celebrity weight changes.
1. Nicole Ritchie
In 2006, the 5’2″ socialite weighed only about 90 pounds—dangerously thin even by Hollywood standards—and sought treatment for her weight issues. Many speculated she was suffering from an eating disorder, although she never spoke openly about it.
2. Jennifer Hudson
In April 2010, Hudson, 32, became the face of Weight Watchers. She had slimmed down from a size 16 to a slender size 6.
3. Christian Bale
This Batman famously lost a startling 63 pounds to play a chronic insomniac in the film The Machinist. Bale, now 41, reportedly took supplements to make sure he still got his vitamins but hardly ate and over exercised to trim himself to only 122 pounds (he’s 6 feet tall!).
4. Oprah Winfrey
In the early 2000s, she trimmed down to a fit 160 and thought she had finally conquered her weight issues. But in 2008, she opened up that she had hit 200 pounds—again. In 2010, she announced on her show that she would never diet again.
5. Drew Carey
For funny guy Drew Carey, 55, the extra pounds were becoming a serious health issue. After losing 80 since 2011, Carey says he no longer needs medication for his type 2 diabetes. To slim down, he stuck to a diet high in protein, fruits, and veggies, and a tough regimen of 45 minutes of cardio six times a week.
6. John Goodman
The actor, perhaps best known for his beefy Dan Conner on Roseanne, tipped the scales at 368 pounds in 2007. Since then, Goodman, 61, has quit drinking, cut sugar out of his diet—and gotten off the couch. Now he works out six days a week and is down more than 100 pounds!
7. 50 Cent
The rapper’s shocking weight loss wasn’t because of any health concerns; it was because of his role as a cancer patient in the film Things Fall Apart. In May 2010, 50 Cent, 38, revealed emaciated-looking photos of himself. He had dropped from 214 pounds to a slight 160 in just nine weeks.
8. Kelly Osbourne
After a stint on Dancing with the Stars, Ozzy’s daughter quit her emotional eating and dropped 50 pounds. All the dance workouts and weight training paid off for the 29-year-old; she bared her new body on the cover of Self magazine in 2013.
9. Jared Leto
The actor gained 60 pounds to play the role of John Lennon’s killer in the film Chapter 27. The sudden and dramatic gain left him with severe gout-like foot pain. Leto, 43, told the New York Daily News that he “gorged and force-fed” himself to put on the pounds. He said it took over a year to feel like he was back to normal and won’t be gaining weight for a role again.
10. Charlize Theron
The actress gained 30 pounds eating doughnuts, and was almost unrecognizable as a prostitute and serial killer in 2003’s Monster. She returned to her normal weight even before the film’s premiere. Theron, 40, who has said she is usually around a size 8 and likes her curves, went on to win the Golden Globe for Best Actress for the role.
11. Star Jones Reynolds
The former co-host of The View at first wouldn’t fess up to having gastric bypass surgery. But having dropped around 160 pounds in just three years, Reynolds, 53, came clean in 2007 that she had done something drastic to lose the weight.
12. Renee Zellweger
To play the classic, awkward thirtysomething role of Bridget Jones, actress Renee Zellweger, now 44, gained 20 pounds and went from a size 4 to a size 14. Perhaps more shocking was her post-Bridget Jones slim down. She dieted to lose the weight she had put on, and continued to lose even after returning to her healthy size 4.
13. Al Roker
The Today show’s weather anchor also turned to surgery to get trim. Roker, 59, weighed over 340 pounds in 2002 and was wearing a size 60 suit. In 2002, he underwent gastric bypass surgery and dropped 140 pounds. Today, he watches his portion sizes and exercises regularly to stay around 200 pounds.
14. Kirstie Alley
One of the most notorious yo-yo dieters, actress Kirstie Alley, 64, was once the face of Jenny Craig. She lost 75 pounds with the diet plan’s help, but gained much of it back after her contract ended. She starred in her own show about her struggle with her weight in the mid-2000s, when her weight had ballooned to over 200.
15. Randy Jackson
In 2002, the American Idol judge weighed over 300 pounds. The music legend, 59, struggled to keep his diabetes under control and opted for gastric bypass surgery in 2003. He lost 100 pounds and has kept it off by eating fewer processed foods, cutting back on fat and sugar, and spending more time walking on his treadmill and playing tennis.