Kai Greene recently decided that he was going to try following a vegan diet to see how he felt and performed in the gym. After some social media dialogue, former World’s Strongest Man Hafþór Júlíus Björnsson had said he would be willing to try it himself. This all follows the recent release of the Game Changers documentary which was supported in part by 7-time Mr. Olympia Arnold Schwarzenegger.

You might be surprised to know that neither “Mr. Getting It Done” nor “The Mountain” are the first in their respective fields to do this.

There are athletes across multiple sports that follow plant-based diets. Here are 10 who have given up meat and are still very successful in their fields of choice: