THE GUY BEHIND
THE GAINS
Kadin Kerns — F45 head trainer, former D1 football player at Kent State, and the guy who proved you can eat fast food multiple times a week and still have abs.
With over 3.1 million followers on TikTok and 1 million on Instagram, Kadin built a community around one simple idea: you don't have to eat boring food to be fit. His cookbook Diet Starts Tomorrow is proof.
THE STORY
It started at Kent State. Playing D1 football meant training like a maniac and eating everything in sight. The problem? Most “fitness food” tasted like punishment.
So Kadin started experimenting. What if you could take the foods everyone actually loves — burgers, mac and cheese, french toast — and make them hit your macros? Turns out, you totally can.
After college, Kadin became a head trainer at F45, one of the fastest-growing fitness franchises in the world. He started posting his recipes and workouts on TikTok. The response was insane.
3.1 million followers later, the cookbook Diet Starts Tomorrow was born. It's not a diet book. It's an anti-diet book. It's for the people who want to look good AND enjoy their food. The ones who hit the gym and then hit the drive-through. No judgment. No guilt. Just gains.
THE PHILOSOPHY
“You don't have to eat boring food to be fit.”
That's it. That's the whole thing. Most fitness influencers will tell you to cut out everything you love. Kadin says eat what you love — just make it work for your goals.
Every recipe in the cookbook is designed to taste like the food you actually want to eat, with the macros you need to hit your goals. No sadness. No sacrifice. Just smart swaps and better ingredients.
THE CREDENTIALS
F45 Head Trainer
Certified trainer at one of the world's top fitness franchises
D1 Football — Kent State
Competed at the highest level of college athletics
Promix Athlete
Sponsored athlete and brand partner
3.1M+ TikTok
One of the most-followed fitness creators on the platform
Content Creator w/ Dayle
Creates fitness and food content with his wife Dayle