How many grams of carbohydrate can an athlete eat and remain in ketosis? The reality is that athletes require more metabolic flexibility. So the general recommendations of 30-50 grams will often just not cut it. The goal isn't just to be in ketosis, it is to leverage ketosis for your benefit to increase endurance, energy, allow to burn fat, and maintain strength. So many athletes can benefit by doing a more moderate keto diet. The proof is in one of the most famous studies done by Dr. Jeff Volek, The Metabolic Characteristics of Keto-Adapted Ultra Endurance Runners. Check out this video and it will get into what you need to know.