Whats the deal with keto diets making cycling workouts feel like a slog? Is it the lack of glycogen stores, the increased reliance on fat metabolism, or something else entirely? Ive heard some riders swear by keto for endurance events, but others claim its a recipe for bonking and decreased performance. Can someone explain why keto seems to suck the joy out of riding for some people, while others seem to thrive on it? Is it a matter of individual physiology, or is there something more at play? And what about the whole keto adaptation thing - does it really take 2-4 weeks to adapt, or is that just a myth perpetuated by keto evangelists?