Biggest Celebrity Fitness Transformations Of The Decade

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Jan. 2 2020, Published 12:04 a.m. ET

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A new year (let alone a new decade) could mean a New Year’s resolution is in the works. For many, including countless celebrities, fitness transformations are a major goal to strive towards. Some celebrities, changed their diet. Others tried out a new physical routine in order to shed weight. From actors and reality stars to musicians and TV personalities, keep reading to find out all about the biggest celebrity transformations of the decade!

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Tim McGraw
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Tim McGraw revealed that his major transformation was inspired by his daughter fat-shaming him in 2009. “I was in the prime of my career, and I wasn’t capitalizing on it,” the country singer revealed, as he weighed 215 pounds at the time. Tim, 52, cut out booze and fast food, and started going on walks first thing in the morning. The walks eventually turned into runs, and he started to incorporate weight lifting into his routine. The country crooner has kept up his physical regimen since, and shed 40 pounds over the years.

jessica simpson
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Jessica Simpson’s weight has fluctuated throughout the years. In 2019, the fashion mogul shed her baby weight and dropped 100 pounds. At one point, Jessica, 39, tipped the scale at 240 pounds. The fashion mogul set five goals to each every day in order to stay on track. She took 12,000 steps a day, got seven hours of sleep each night, spent an hour away from technology daily, ate three meals and two snacks daily, and did circuit workouts for exercise. “Even when it felt impossible, I chose to work harder,” she captioned a social media update.

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Adele lost 20 pounds since her split from ex-husband Simon Konecki in April 2019. According to a source for Us Weekly, Adele, 31, shed weight by exercising three times a week. She is also focusing on her health more, which sets a good example for her 7-year-old son, Angelo. Additionally, the Grammy Winning artist cut back on carbs and avoided snacking during meals. The “Someone Like You” singer debuted her trim figure in October at Drake’s birthday party.

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jonah hill
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Jonah Hill’s weight has fluctuated over the years, as he maintained a certain standard for movie roles such as War Dogs and Moneyball. "I spent most of my young adult life listening to people say I was fat, gross, and unattractive," he said during an appearance of The Ellen DeGeneres Show. "And it’s only in the last four years writing and directing my movie, Mid90s, that I’ve started to understand how much that hurt and got into my head." Jonah, 35, reached out to Channing Tatum for advice on how to shed weight. His 21 Jump Street costar introduced him to his nutritionist, and Jonah started exercising with a trainer to stay trim.

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Snooki gained 40 pounds after giving birth to her first child in 2012. In order to be a healthy mama, the reality star made some changes to her diet. Snooki, 32,  credited her weight loss to cutting out booze. "Once I had Lorenzo, I'm like, 'I cannot be hungover taking care of my baby'. It's not right," she said. "I want to set a good example… to eat healthy and work out. I hardly drink anymore. I eat a lot of chicken and vegetables." The Jersey Shore star restricted her diet to 1250 calories daily at one point, and worked out five to seven times a week. Snooki ultimately lost 50 pounds.

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Teresa Giudice began her major transformation during her 11-month long prison stint in 2015. She avoided eating carbs and certain meats like tacos and hot dogs, and worked out up to three times a day. When the Real Housewives of New Jersey star was released, she took her healthy habits with her. Teresa, 47, continued to eat nutritious meals. Her daily workouts are 2 intervals of 45 minute cardio sessions, along with 45 minutes of weight training. She even took up bodybuilding and even enters bodybuilding competitions, which requires her to maintain a certain physique.

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Chris Pratt cut out beer and worked with a trainer six days a week in order to slim down and bulk up for his role in Guardians of the Galaxy. Chris, 40, lost 60 pounds in six months during the lifestyle change, as he increased his caloric intake and drank tons of water. “It gave me a sense of absolute control,” the Parks & Recreation alum said.

Chris also followed the Daniel Fast for 21 days, as he limited his intake to fruits, vegetables and unleavened bread for three weeks. The diet is meant to help people “focus on their health using Christ-centered teachings,” as well as implement prayer into their regimen.

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Miranda Lambert dropped 25 pounds by simply cutting out Cheetos, consuming pressed juices. The country singer also added cardio and circuit training to her routine. "I spent my 20s on a roller coaster—my yo-yo weight, working all the time, and partying. I just wanted to get healthier and go into my 30s in the best shape I could be in," she revealed.

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Khloe Kardashian dropped 40 pounds by channeling the negative energy from her divorce into exercising. She also watched what she ate, and cut out dairy from her diet. “I work out almost every day…I go to a trainer five days a week, and on the weekends, I do cardio and whatever I want to do,” she revealed to People in 2018. She also credits portion control for her slender physique. By the time she gave birth to True in 2018, she was so committed to her workout routine that keeping off the post-baby weight was easy.

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jennifer hudson
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Jennifer Hudson lost 80 pounds, going from a size 16 to a size 6.  The American Idol winner said she became very conscious about what she was eating and paced herself through the day between meals. In order to slim down, Jennifer, 38, cut out fried food, red meat, and pasta. She found that the secret to maintaining her shape was balance and portion control. The Cats actress joined and became a spokesperson for Weight Watchers in the process.

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melissa mccarthy
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Melissa McCarthy lost 50 pounds in 2015, and told Life & Style that she did it by changing the way she thought about weight. "I truly stopped worrying about it," she told the magazine. "I think there's something to kinda loosening up and not being so nervous and rigid about it that, bizarrely, has worked." Melissa, 49, also credited going to bed at 7:30 every night along with working out to help her drop the pounds.

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Britney Spears trained hard and ate better order to lose weight. The “Circus” songstress lost 20 pounds in the past few years, and stays active to keep it off. She lifts and does cardio, along with ab workouts and push-ups in order to keep her body toned. Britney, 38, also eats plenty of fruits and vegetables and cut down on carbs to keep her figure and feel better. However, she does allow herself cheat meal foods, such as pizza, tacos and ice cream.

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Christina Aguilera’s weight fluctuated over the years, from having her first baby to getting trim for Burlesque, along with the stress of divorce. The “Genie in a Bottle” singer lost 40 pounds in 2013 by doing yoga daily, along with using a low-calorie meal service to maintain her diet. Since she was already in the rhythm of working out, Christina, 39, made her health her priority during her pregnancy.

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Kim Kardashian shed her baby weight after giving birth to her second child Saint by following the Atkins 40 Diet plan. By focusing on the low-carb diet, Kim, 39, shed 60 pounds, and was pleasantly surprised by the results. “I'm definitely to my goal weight. I'm down more than I expected," she confessed. The SKIMS founder also focused on sculpting her body, instead of shedding pounds. Most recently, her lowest weight was 116 pounds. She revealed in November 2019 that she gained 18 pounds. However, she is determined to get back to her goal weight.

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joe giudice
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Joe Giudice lost 45 pounds while he was in prison and ICE detainment. The Real Housewives of New Jersey star reportedly worked out up to five days a week, according to a prison source for They also noted that fitness was the 47-year-old’s “only stress reliever” and cut down his food intake. “Juicy Joe” also sobered up, which appeared to contribute to the substantial weight loss.

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jimmy kimmel
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Jimmy Kimmel lost 25 pounds by changing his diet. At first, he only had two protein shakes and a small dinner. Jimmy, 52, then moved onto eating 2,000 calories a day. In order to maintain the weight loss, he implemented the 5:2 diet. This method of intermittent fasting allowed him to eat whatever he wanted five days a week. For the other two, Jimmy had strict caloric intake of less than 500 calories a day. On these days, the TV personality would drink coffee and water, and eat pickles, egg whites, apples, peanut butter, and oatmeal.

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June Shannon, AKA Mama Junedocumented her dramatic weight loss on the WEtv series Mama June: From Not To Hot. She used a gastric sleeve to kick-start the process in 2017, and lost over 300 pounds after reportedly weighing over 450 pounds at one point. June, 40, worked with a trainer and focused on portion control in order to shed the weight. At one point, the reality star was a size four!

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Sam Smith dropped 50 pounds by cutting out gluten, dairy, and refined sugar from their diet by working with nutritionist Amelia Freer. They also worked out three times a week with a trainer, as they focused on cardio and lifting. "My relationship with food has just completely changed," the singer revealed during an appearance on the TODAY show. "During the process of this album In the Lonely Hour, I just was getting bigger and bigger and bigger." Despite the successful weight loss, Sam, 27, has been honest about how difficult it can be balancing a healthy diet and their love of food. “I'm always going to be trying because I love food more than you could imagine. It's always going to be a struggle for me,” they told Extra.

wendy williams
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Wendy Williams dropped 50 pounds in three years. Her secret? She did Pilates and cardio, plus cut meat out of her diet.“Out of all the crazy diets I've ever been on, none have ever been as effective as, 'Just push back, fatso.' And stop eating so much," the talk show host confessed. Wendy, 55, also stopped eating refined sugars and dairy, and won’t eat after it gets dark outside.


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