Many athletes are performing well on ketogenic diets. However, at this time, the bulk of high-level evidence suggests that traditional carbohydrate-fueling is the better option for high-intensity sports performance. That said, researchers believe that fully keto-adapted athletes (over several months) may be able to perform equivalent to that of carbohydrate-fueled athletes. To substantiate this claim, further studies on athletic performance in longer-term keto-adapted athletes are needed.