Zach Galifianakis & More Celebrities Who Lost A Ton Of Weight [Photos]

Zach Galifianakis revealed a stunning weight loss at the premiere of his new movie, Birdman earlier this week and he a pretty witty reaction when E! asked him his secret.

“I’m dying,” he joked before keeping the games going by saying he was wearing a ladies’ suit.

Just because you’re a celebrity doesn’t mean a wealth of fame and fortune makes it easy to get on a healthy regime. The Zach Galifianakis weight loss has prompted us to look at several other famous names who lost a ton of weight–and actually kept it off.

—
Photos: Dennis Van Tine/Future Image/WENN.com

Photo: Agent 47/WENN.com

Heavy D

The former overweight lover sadly lost his battle against heart disease in 2011 and it was clear he had turned his health around.

Photo: Michael Carpenter/WENN.com

Kirstie Alley

The veteran actress revived her time in the spotlight by becoming a spokesperson for Jenny Craig after getting in shape at the top of the decade. By the way, she’s 63-years-old.

Photo: WENN

Nicole Richie

Lionel Richie’s daughter got shockingly skinny when she dropped to 88 lbs. just from eating sunflower seeds in January. But she’s back to being normal and has a new reality show out.

Photo: Dan Jackman/WENN.com

Al Roker

The longtime face of TODAY famously underwent gastric bypass surgery in 2002 and his skinny appearance has been synonymous with the news ever since.

Photo: Andres Otero/WENN.com

Rosie O’Donnell

O’Donnell returned to The View in September 53 lbs. lighter than before. She attributed the shift to a sturdy diet and denounced the notion that weight loss surgery is a great solution.

Photo: FayesVision/WENN.com

Nicole “Snooki” Polizzi

How do you have two children and get skinnier than before? Snooki shared all her secrets in health publications worldwide.

Photo: FayesVision/WENN.com

Jennifer Hudson

The Grammy and Oscar-winning star hasn’t looked back to a bigger size dress since her Dreamgirls days.

Photo: WENN

Jack & Kelly Osbourne

Ozzy’s kids have come a long way since their portly, foul-mouthed stint as a reality show family.

Photo: Derrick Salters/WENN.com

Missy Elliott

The superstar rapper/producer fell from the spotlight as she silently battled Graves Disease, but it she returned to the spotlight with a healthier outlook on life.

Photo: Nikki Nelson/WENN.com

Roseanne Barr

The famous comedienne debut a visibly different appearance earlier this year and she currently uses her new look as a host on NBC’s Last Comic Standing.

Photo: WENN

Fat Joe

The platinum-selling rapper is using the “Fat” portion of his moniker as formality these days.

Photo: WENN

Al Sharpton

The Reverend/civil rights leader got his diet on track while being incarcerated in 2001. That’s dedication from God.

Photo: Apega/WENN.com

Drew Carey

Knowing that half of America would be watching him on The Price is Right for a chunk of their lives, Carey simply said he was “sick of being fat” and made a change in 2010.

Lebron James

The NBA megastar lost a bunch of weight and found some hair as he preps his return to the Cleveland Cavaliers.