If you water-only-fast for long enough (21 to 31 days) your intolerance to fructose will be eradicated, just as your candida will be also. Fructose is a natural Sugar found in the fruits we are designed to eat by Nature, but these would be classified as complex carbs as opposed to the disease-causing fructose we find in processed foods (HFCS) or High Fructose Corn Syrup.
Any food intolerance is due to an internal condition known as toxemia, as is candida overgrowth; the latter becomes a problem when the internal bodily environment provides the ideal medium for candida to get out of hand: again toxemia.
Rid yourself of toxemia, and your health problems will be no more.