Many of the reasons we stop eating keto, or people are too afraid to try a low-carb diet. How to overcome your own objections, bust the blocks, and create the life you wanna live. However, raspberries, strawberries, and blueberries provide fiber and antioxidants. Some people believe elite athletes benefit from keto cycling because their bodies use extra carbohydrates as energy to power through difficult workouts and races. After all, research shows that following the strict keto diet impairs exercise performance.