Celebrity Chefs' Weight Loss Journeys

Duff Goldman took the world by storm (in the best way possible) yesterday when he showed off his dramatic three-month weight loss.

The Ace of Cakes star took to Instagram to share a side-by-side photo of his face before and after he began exercising and eating healthier.

"Wow. It's been three months and I feel like these are photos of two different people," he captioned the photo, sparking hundreds of comments. In fact, when a few fans asked how he did it, he said he followed "the old school way" of "eating clean, riding my bike and lifting weights."