Brehs does the carb source matter ?? my post-workout shake contains primarily sugar as listed on the powder label (and sometimes I mix that with low-fat fruit yogurt which is mainly fructose ??) ...Ive noticed that some weight gainers contain about 125grams of carbs and of that only 17grams are actually sugar ..also note that I practice intermittent fasting at-least 4 days of the week ....help