Food Network star Duff Goldman looks so different these days that he hardly recognizes himself.
The former "Ace of Cakes" star took to Instagram on Aug. 15 to show off his incredible weight loss.
In a side-by-side picture, Duff wrote, "Wow. It's been three months and I feel like these are photos of two different people."
Many of his 153,000 Instagram followers began to immediately comment and wonder how he lost so much weight. He replied that he did it by "eating clean, riding my bike and lifting weights." He called it "the old school way."
Duff had been chronicling his weight loss and workouts on Instagram over the past three months. On Aug. 13 he posted a pic of him in the gym.
"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."
His friends have also been noticing his weight loss, too, and it's even changed his wardrobe.
"That feeling when you lose so much weight you drop a shirt size so all your friends send you new t shirts," he captioned a self on Aug. 10.
Keep up the good work, Duff!