Some elite ultrarunners are on LCHF diets, like Zach Miller, Timothy Olson or Jeff Browning. I don't think any of them are on the keto diet specifically. But th

Some elite ultrarunners are on LCHF diets, like Zach Miller, Timothy Olson or Jeff Browning. I don't think any of them are on the keto diet specifically. But the vast majority of them are on the typical high-carb runner diet.