Following in the footsteps of other fitness influencers, the new dad posted about his body transformation on Instagram following the completion of his new #5minutefast challenge.
The 35-year-old captioned the before and after pictures: "Just completed the #5MinuteFast, an exciting health fitness trend I invented today! The goal being to see if you can do 5 minutes with zero food whatsoever, not even nibbles or snacks."
"I was excited to do it but after the initial thrill wore off I have to say I found the middle 200 seconds challenging, and had to dig deep and think about all the cleansing my body was doing, despite my raging hunger.
"With 30 seconds to go I just tried to hang on for dear life, and as you can see at the end, I was overjoyed. Felt a lot lighter, very clear headed and so proud of myself. Look forward to doing the #5MinuteFast again and not cheating next time! (Had a bag of chips at the 2 min mark, but I was feeling VERY faint). Try it yourself and let me know if you made it in comments!!"
Fans were taken back.
"Impossible," wrote @jordan_lea.
Another user, @adelaide_paternoster, commenter, "My type of hero."
@chelle1811 asked Hamish, "Are there any workouts you'd recommend to complement this regime? Excited to see everyone's before and after shots #5tothrive."
Although some questioned whether the method was realistic.
"I dunno if I can do it," wrote @chelsea.christina.
But we're willing to give this revolutionary diet a try.
This article originally appeared on Men's Health