The ketogenic diet advises keeping carb intake under 50 grams per day, and ideally under 20 grams.
Assuming that a person performs intense cardio exercise (e.g. crossfit), burning, say, 400 calories per session (day), does that offset an increase in carb intake?
In order words, if I'm sedentary and stay under 20 grams of carbs per day, I remain in ketosis. Carbs provide 4 calories per gram, so if I burn 400 calories via exercise, how many extra grams of carbs can I eat and still remain in ketosis? (100?)