These 24 Celebrity Weight Loss Journeys Are Pretty Mindblowing

by Colleen Stinchcombe
Jul 5, 2017 at 4:30 p.m. ET

It's 2017, and by now we know that beautiful bodies come in all shapes and sizes — but sometimes a byproduct of getting healthy is dropping a few pounds. Take, for instance, these celebs who took it upon themselves to overhaul their lifestyles and went through dramatic weight-loss transformations in the process.

Don't be fooled by their shrinking sizes — these celebs are still huge stars.

Originally published January 2015. Updated July 2017.

1 /48: America Ferrera

1/48 :America Ferrera

America Ferrera as she was just stepping into fame after Sisterhood of the Traveling Pants released in 2005.

2 /48: America Ferrera 2016

2/48 :America Ferrera 2016

"I think that body image is such a personal thing," Ferrera told FemaleFirst.co.uk in 2009, "but I am fine with who I am."

3/48 :Melissa Mccarthy

McCarthy is always stunning and brings smiles to our faces playing powerful, complex women on screen.

4 /48: Melissa McCarthy 2016

4/48 :Melissa McCarthy 2016

McCarthy was actually criticized by fans in 2015 for her weight loss. 

5/48 :John Goodman

John Goodman has always fluctuated in weight.

6 /48: John Goodman 2016

6/48 :John Goodman 2016

But now he's more svelte than ever.

7 /48: Shonda Rhimes 2014

7/48 :Shonda Rhimes 2014

Rhimes is known and respected for her work in Hollywood.

8 /48: Shonda Rhimes 2016

8/48 :Shonda Rhimes 2016

In 2015, she committed to losing weight as part of her personal journey to overcome fears. 

9 /48: Khloé Kardashian 2014

9/48 :Khloé Kardashian 2014

Kardashian always owns her curves and people love her for it.

10 /48: Khloé Kardashian 2016

10/48 :Khloé Kardashian 2016

This year she transformed her body and credits quitting dairy for her weight loss. We stand by how stunning she looked before.

11 /48: Chris Pratt

11/48 :Chris Pratt

Chris Pratt was always a loveable hunk.

12 /48: Chris Pratt 2016

12/48 :Chris Pratt 2016

Chris Pratt in 2014. "It's something that I think I can maintain because now I don't spend four hours in the gym each day," Pratt told People. "I do maybe one hour in the gym maybe four days a week, and that's it."

13 /48: Christina Aguilera

13/48 :Christina Aguilera

Christina Aguilera in 2011.

14 /48: Christina Aguilera 2016

14/48 :Christina Aguilera 2016

"Laughter, happiness, breathing, and I did some yoga," she told ExtraTV about how she lost weight.

15 /48: Jennifer Hudson

15/48 :Jennifer Hudson

Jennifer Hudson in 2007.

16 /48: Jennifer Hudson 2016

16/48 :Jennifer Hudson 2016

Hudson credits Weight Watchers for her bangin' figure.

17 /48: Jason Segel

17/48 :Jason Segel

Jason Segel in 2008.

18 /48: Jason Segel 2016

18/48 :Jason Segel 2016

"I've just been living healthy, exercising, eating right — no more midnight pizzas," Segel told Us Weekly.

19 /48: Jessica Simpson

19/48 :Jessica Simpson

Jessica Simpson in 2009.

20 /48: Jessica Simpson 2016

20/48 :Jessica Simpson 2016

"For breakfast I am an oatmeal girl," Simpson told Good Morning America. "Lunch, I do like bread so I will have a sandwich or something. But for dinner I try to keep it super clean."

21 /48: Jonah Hill

21/48 :Jonah Hill

Jonah Hill in 2010.

22 /48: Jonah Hill 2017

22/48 :Jonah Hill 2017

"I found that Japanese food was very helpful to me," he told ABC of his journey to weight loss.

23 /48: Kirstie Alley

23/48 :Kirstie Alley

Kirstie Alley in 2004.

24 /48: Kirstie Alley 2015

24/48 :Kirstie Alley 2015

Alley says Jenny Craig helped her shed pounds.

25 /48: Miranda Lambert

25/48 :Miranda Lambert

Miranda Lambert in 2012.

26 /48: Miranda Lambert 2016

26/48 :Miranda Lambert 2016

"I want women to love themselves whatever they've got going on," Lambert told Marie Claire.

27 /48: Jordin Sparks

27/48 :Jordin Sparks

Jordin Sparks in 2010.

28 /48: Jordin Sparks 2016

28/48 :Jordin Sparks 2016

"It has been really focusing on becoming healthier, and the plus side was that my body changed," she told Today.

29 /48: Queen Latifah

29/48 :Queen Latifah

Queen Latifah in 2008.

30 /48: Queen Latifah 2016

30/48 :Queen Latifah 2016

Queen Latifah in 2014. Latifah is a spokesperson for Jenny Craig, but told PEOPLE her weight isn't the result of a diet: “I don’t really diet. I kind of keep everything in moderation, exercise and eat right. I eat a lot of vegetables and lean meats, and I drink a whole lot of water."

31 /48: Kelly Osbourne

31/48 :Kelly Osbourne

Kelly Osbourne in 2004.

32 /48: Kelly Osbourne 2016

32/48 :Kelly Osbourne 2016

Kelly Osbourne in 2014. Osbourne told HuffPost, "Once I learned how to work out right and eat right, it’s one of those things that you just have to commit to a life change rather than being on a diet. Because a diet doesn’t work. You lose weight and you stop it and it will all come back. So you just have to take baby steps, commit to something and stay true to it."

33 /48: Seth Rogen

33/48 :Seth Rogen

Seth Rogen in 2007.

34/48 :Seth Rogen 2016

Seth Rogen in 2014. He lost weight for the role of Green Hornet, and told OK! magazine, "I lost it for a role, but I don’t know if I’ll keep it. That’s the big question. I have a lot of tantrums. I want my food. I cry for no reason."

35 /48: Snooki

35/48 :Snooki

Snooki in 2010.

36 /48: Snooki 2016

36/48 :Snooki 2016

"I don’t drink a lot... that was most of the problem," she told Access Hollywood.

37 /48: Melissa Joan Hart

37/48 :Melissa Joan Hart

Melissa Joan Hart in 2006.

38 /48: Melissa Joan Hart 2016

38/48 :Melissa Joan Hart 2016

"I am really happy where I am. I could live like this. I'm on a good path," She told Entertainment Tonight.

39 /48: Rosie O'Donnell

39/48 :Rosie O'Donnell

Rosie O'Donnell in 2012.

40 /48: Rosie O'Donnell 2016

40/48 :Rosie O'Donnell 2016

After suffering a heart attack, O’Donnell chose to have a vertical gastric sleeve surgery. She told People, “"In my opinion, [this surgery is] something that needs a little more attention for people who have suffered with morbid obesity their whole lives.”

41 /48: Randy Jackson

41/48 :Randy Jackson

Randy Jackson in 2002.

42 /48: Randy Jackson 2016

42/48 :Randy Jackson 2016

Jackson lost more than 100 pounds after undergoing gastric bypass surgery for his health in 2003. Jackson now controls his diabetes through diet and exercise alone, as he told WebMD, "I go to the doctor four times a year to see where my sugars are. It's a good thing to stay on top of body, because health is the biggest wealth we can have in the world."

43 /48: Zach Galifianakis

43/48 :Zach Galifianakis

Zach Galifianakis in 2008.

44 /48: Zach Galifianakis 2016

44/48 :Zach Galifianakis 2016

 

 

45/48 :Sam Smith

Sam Smith performs during the 2014 Bonnaroo Music & Arts Festival on June 13, 2014.

46 /48: Sam Smith 2016

46/48 :Sam Smith 2016

Smith claims that Amelia Freer's book Eat. Nourish. Glow. transformed his relationship with food.

47/48 :Adele

Adele at the Brit Awards in February 2008.

48/48 :Adele 2017

"I’ve never had a problem with the way I look," Adele told Rolling Stone magazine.