Irrelevant. If your body extracts only 50Cal from a 100Cal cube of sugar, but you counted that 100Cal value against your daily limit, then you're still achievin

Irrelevant. If your body extracts only 50Cal from a 100Cal cube of sugar, but you counted that 100Cal value against your daily limit, then you're still achieving your goal. The problem is often that people set too high a limit and overestimate how much they burn during exercise.