FBI star Zeeko Zaki has detailed his extraordinary 100lb weight loss, revealing his top tip for anyone who is looking to change their lifestyle.
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The actor recommended a slow and steady transformation, losing the weight over eight years. "The craziest part was just being kind of a different person every year. You get like 10 lbs. a year, I wanted to do it slow," he explained.
WATCH: See the trailer for the FBI finale pulled from schedule in light of Texas shooting
"But my biggest tip and the thing that I walked away from was a little trick I learned from The 4-Hour Body by Timothy Ferriss," he added.
"30 grams of protein within 30 minutes of waking up. So give it a shot."
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Zeeko works out up to six times a week, trying to get in a 30 minute activity every morning before work.
The Egyptian-born star also told Entertainment Tonight that he still feels like "that old kid" but that "the fact that we kind of got to reveal whoever this guy is with you guys here was pretty exciting."
Zeeko has appeared in the show for five years
The season four finale of FBI has yet to air after network CBS pulled the episode after a deadly elementary school shooting in Texas.
CBS made the decision not to air the episode - which was to center on a school shooting - in light of the tragedy at a Texas elementary school on Tuesday 24 May, which is the deadliest US school massacre since Sandy Hook.
There remains no news as to when or if the episode will ever make it to screens.
The official synopsis for the rerun reads: "Maggie goes undercover working in a bar to investigate an anti-government group that regularly gathers there and has several members suspected in a series of bombings. The case opens old wounds for her when a single father on the periphery of the group begins to fear he's in danger of becoming collateral damage."