When taken with carbs, as was done in the athlete studies, performance output increases because the body has access to both types of energy. The ketones are used first, protecting the glucose for later use.
My understanding is that many elite-level athletes can still achieve ketosis while consuming a significant amount of carbs (around what most people would probably consider normal intake) because they're training so much and burning so much glycogen.
What happens when it's an average person who doesn't have the same energy expenditure and metabolic efficiency as an elite athlete?
What happens when it's an average person who doesn't have the same energy expenditure and metabolic efficiency as an elite athlete?