After losing a loved one, this everyday guy from Usk, Monmouthshire, decided to push himself to do something different.
I chat to Kate about what it takes to be a world champion, the best foods for training and about her new coaching business.
After a successful career in MMA, Gayle now runs a training gym dedicated to callisthenics and body mobility.
Her top five foods during training, how veganism helped her career and plans for 2018.
What does it take to be a vegan endurance athlete?