You may not recognize Duff Goldman these days...In fact, he barely even recognizes himself!

The former Ace of Cakes star took to Instagram to share a side-by-side photo of his three-month weight loss, which he's chalking up to eating clean and working out more.

"Wow. It's been three months and I feel like these are photos of two different people," he captioned the photo, which sparked hundreds of comments.

Several fans asked how the Food Network star went about dropping the weight to which he responded "the old school way" of "eating clean, riding my bike and lifting weights."

A post shared by Duff Goldman (@duffgoldman) on

Though this is the first time we've seen a side-by-side photo of his transformation, Goldman has been sharing his hard work with his fans on Instagram.

For example, he shared a mirror selfie, writing, "That feeling when you lose so much weight you drop a shirt size so all your friends send you new t shirts. Thanks @therealikes!"

He also shared a photo this weekend during his strip to Israel, noting how he's still managed to find time for his work outs.

A post shared by Duff Goldman (@duffgoldman) on

"How to kill jet lag...wake up at 4 am, enjoy the local plant life while watching the sun come up over the Golan Heights, then hit the weights," he wrote. "My brother Willie did it all with me against his wishes, but I can be pretty convincing. This my Dwayne @therock Johnson impersonation."

Even on the Fourth of July—while the rest of us were eating hot dogs and drinking beer—Goldman shared a photo of two bun-less hamburger patties with pickles and grilled zucchini.

Meanwhile, Goldman joins a long list of celebrities who have dropped a ton of weight over the years. Check out their transformations below:

Drew Barrymore, Weight Loss

Instagram / Drew Barrymore

Jonah Hill, Weight Loss

Cousart/JFXimages/WENN.com, Rachpoot/MEGA

June Shannon, Mama June

Axelle/Bauer-Griffin/FilmMagic; Paras Griffin/Getty Images

Emma Thompson, 2010, 2016

Getty Images

Melissa Joan Hart

Monica Schipper/Amanda Edwards/Getty Images

Rob Kardashian

Gabe Ginsberg/Getty Images/ENUF / RAAK / Max Lopes / AKM-GSI

Britney Spears

Frazer Harrison/BBMA2016/Getty Images/JB Lacroix/WireImage

Wendy Williams, Weight Loss

Dimitrios Kambouris/Mike Coppola/Getty Images

John Goodman

ROBYN BECK/AFP/Getty Images; KGC-42/STAR MAX/IPx via AP

Countess Vaughn

JC Olivera/Getty Images; Instagram

Sam Smith

Dave Hogan/Getty Images; Instagram

Abby Lee Miller

Dimitrios Kambouris/Getty Images; Gabriel Olsen/FilmMagic

Melissa McCarthy

Getty Images

EJ Johnson

Getty Images; Instagram

Lea Delaria, Weight Loss

Getty Images

Sarah Ferguson, Weight Loss

Getty Images

Corey Harrison, Weight Loss

Denise Truscello,Bryan Steffy/WireImage

Debra Messing

Andrew H. Walker/Getty Images; PatrickMcMullan.com/AP Images

Maria Menounos

4CRNS/Premiere/FAMEFLYNET, Ladies Home Journal

Tom Arnold

Gary Miller/FilmMagic

Miranda Lambert

Getty Images

Jack Osbourne

Jamie McCarthy, Albert L. Ortega/WireImage

Ricki Lake

Jason Merritt, Frederick M. Brown/Getty Images

Patti Stanger

Michael Buckner, Toby Canham/Getty Images

Mariah Carey

Jun Sato/WireImage; Jenny Craig

Angie Everhart

Frazer Harrison/Getty Images; Dimitrios Kambouris/WireImage

Carrie Underwood

Sgranitz/WireImage; Jordan Strauss/WireImage

Jennifer Hudson

Rosemary Goldhar/WireImage; Jason Kempin/Getty Images

Kellie Pickler

Jason Kempin/ABC; Michael Loccisano/Getty Images

Seth Rogen

Jason Merritt/FilmMagic; Jeffrey Mayer/WireImage

Kirstie Alley

Brian Zak/Sipa Press; Johnny Nunez/WireImage.com

Jordin Sparks

Kevin Mazur/WireImage; Andrew H. Walker/Getty Images

Jonah Hill

Jason Merritt/Getty Images; Kevin Mazur/WireImage.com

Star Jones

Ron Galella/WireImage; John Shearer/WireImage

Sara Rue

Justin Kahn/WireImage; Frazer Harrison/Getty Images

Nicole Richie

Astrid Stawiarz/Getty Images; Jon Kopaloff/FilmMagic

Drew Carey

Albert L. Ortega/WireImage

Lea Michele

Noel Vasquez/Getty Images; Kevin Mazur/WireImage

Kristen Johnston

Dimitrios Kambouris/WireImage; AP Photo/Jennifer Graylock

Al Roker

Henry McGee/Globe Photos/ZUMA; Tasos Katopodis/WireImage for XSport Fitness

Raven Symone

Alberto E. Rodriguez/Getty Images; Jon Kopaloff/FilmMagic

Randy Jackson, Weight Loss

Jordan Strauss, Gregg DeGuire/WireImage.com

Oprah

Ron Galella, Ltd./WireImage; SGranitz/WireImage

Kelly Osbourne

Stephen Lovekin/Getty Images; Maury Phillips/WireImage

Mandy Moore

Dan Herrick/ZUMA Press; Ian Gavan/Getty Images

MoNique

Gregg DeGuire/WireImage; Jeffrey Mayer/WireImage

Valerie Bertinelli

Jeff Vespa/WireImage; Jason LaVeris/FilmMagic

Janet Jackson

Gregg DeGuire/WireImage.com; Nutrasystem

Photos

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Which transformation had your jaw on the floor? Sound off in the comments below!

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