Keto is the best diet in the world… as long as you don’t move. The second you start lifting heavy, doing WODs, or hammering intervals, low‑carb stops being “high performance” and starts working against you. For high‑intensity work, your body prefers carbohydrates as its main fuel source, because carb metabolism can keep up with fast, explosive efforts in a way fat and ketones can’t. On strict keto, that often shows up as slower times, workouts that feel harder than they should, and more muscle l