This article shares the pros and cons on different types of athletes carrying out the keto diet in their training. The keto diet is typically better for lifters, but is also open to athletes who prefer cardio as well. This diet is used to switch the body from primarily using carbs as an energy source to using protein and fats to build up muscle. This link below will share the good, the bad, and the ugly to come with pursuing the keto diet.
https://www.mensjournal.com/food-drink/i-lift-keto-diet-good-idea-me/what-is-the-keto-diet/