Guy Fieri has sparked speculation that he's on weight loss medication after he showed off his slimmed-down figure in a new photo.

On Friday, Gordon Ramsay posted on Instagram a snap of him posing alongside Fieri at one of the British chef's Hell's Kitchen restaurants.

In the snap, Ramsay and Fieri appeared to channel each other's personas, with the former sporting sunglasses and a chain necklace as he held up a plate of his signature dish, the Beef Wellington.

The Mayor of Flavortown, for his part, imitated Ramsay by crossing his arms.

"It's Freaky Friday at @hellskitchen!!!" Ramsay captioned the picture in an apparent nod to the 2003 film about a mother and daughter switching bodies.

Ramsay's daughter Holly, 24, called out her famous father over his Guy Fieri-esque look, commenting: "Dad what are you wearing[?]"

But while many were amused by the two celebrity chefs antics, some paid more attention to Fieri's much slimmer body.

"Damn he lost hella weight," one Instagram user commented, while another pointed out, "Wow look at Mr. [Fieri] looking very slim."

"My guy Guy lookin[g] SLIM!" a third user wrote, as another praised, "Guy Fieri is looking gooooddd."

Guy Fieri
Guy Fieri attends Waterloo Sparkling Water Destination: Endless Summer on May 02, 2024 in New York City. Craig Barritt/Getty Images

RELATED: Kelly Clarkson Finally Admits Using Ozempic-Like Weight Loss Drug After Claiming Workout Caused Body Transformation

Some speculated that Fieri's weight loss may be due to the use of Ozempic or a similar celebrity-loved weight loss drug.

"Guy found Ozempic," one person suggested.

"Ozempic has entered [F]lavortown," a second user quipped.

Another commented, "Guy lookin' cut up! Ozempic looking good on him."

The "Diners, Drive-Ins and Dives" star has not spoken about taking any medication for weight loss.

Guy Fieri
Guy Fieri is interviewed at Guy Fieri's Flavortown Tailgate on Feb. 12, 2023 in Glendale, Arizona. Getty Images/Ethan Miller

But Fieri recently revealed in an interview with Men's Health that he lost around 30 pounds over the past four years due to a change in his diet and exercise routine.

According to the TV chef, he did not give up his favorite deep-fried treats; instead, he reduced food portions and did intermittent fasting.

Fieri also said he goes on hikes and hits the gym regularly, with his workouts including rucking and high-intensity interval training.

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