1.Christian Bale in everything

Christian Bale’s name is often the first brought up when discussing a major body transformation. For 2004’s The Machinist, Bale went from 180 to 120 pounds to embody the titular character, saying of his method to achieve the emaciated look: “I came up with the absolutely brilliant method of just smoking cigarettes and drinking whiskey to lose weight.”

A year later, Bale would weigh in at 220 pounds to take on the role of Batman in Batman Begins. The yo-yo weight loss and weight gain would continue as rail-thin drug addict Dicky Ecklund in The Fighter, and again in American Hustle where he engorged himself on doughnuts and cheeseburgers to make his 228 pound frame appear dough-like.

2. Chris Pratt

The Parks & Rec star was at his heaviest weight ever when he was given the chance to star in Marvel’s Guardians of the Galaxy. His immediate cry? “Honey, I need to lose 75 pounds! Stop baking!” Once Anna Faris, his wife, put down the mixing bowl and he gave up, as he puts it, “fun” and hit the gym, he emerged looking, well, like an action hero capable of outrunning alien hitmen and dinosaurs.

3. Khloe Kardashian

After showing off her hard work all over Instagram, Khloe Kardashian finally got her own fitness-based reality show, Revenge Body with Khloe Kardashian, where we get a glimpse into just what goes into getting an insanely toned bod like hers. Ditching dairy and hitting the gym twice a day are just a couple things that helped her drop 40 pounds.

4.Matthew McConaughey and Jared Leto in Dallas Buyers Club

McConaughey lost 47 pounds, while Leto lost between 30-40 pounds and was left with a 114-pound frame. Besides the physical changes to their bodies, each noticed a change in behavior as well.

“The surprise was how the energy that I lost from the neck down transferred to the neck up,” McConaughey said. “I became clinically aware, almost hyper, I needed three hours less sleep a night. I had an amazing amount of energy from the head up. That was something I didn’t know was going to happen.”

“It changes the way you walk, the way you sit, the way you think,” Leto added.

5. Dwayne Johnson

The Rock has always been in pretty decent shape, playing American football in college before taking up a wrestling career. But the modern Rock is an entirely different and much more massive beast. We’re still a little surprised that his 2015 summer hit San Andreas didn’t just feature him punching the planet into submission.

6. Oprah Winfrey

The secret to Winfrey’s 40 pound weight loss? Balance, eating plenty of fruits and vegetables, and “sexy breakfasts.” Whaaaaat?

7. Gerard Butler

The cast of 300 were the first to experience the brutal training regime imposed by Gym Jones founder Mark Twight, one that saw at least one person throw up from exertion every day. Butler then did extra weight training on top of that to ensure that his King Leonidas would be bigger and more impressive than his warriors.

8. Kirstie Alley

After losing weight and gaining it all back, Kirstie Alley lost 100 pounds in a year and maintained it by staying away from crash dieting and focusing on a balanced nutrition plan instead.

9. 50 Cent

Naturally bulky rapper 50 Cent lost 54lbs for his role as a football player who was diagnosed with cancer.

10. Melissa McCarthy

Melissa McCarthy’s has a surprising secret behind her 50 pound weight loss: living a “super boring life.” Sounds pretty easy to us.

If you are looking for workout clothes check our fitness and yoga leggings page.
Sources:www.highsnobiety.com,www.digitalspy.com,www.delish.com