You should not use Sugar, use dextrose. sugar takes longer to aborb than dextrose as it is made up of 2 glucose molecules bonded together, this means that the Sucrose (sugar) molecule needs to be split before it is used aslo suugar is made from differently oriented glucose molecules that aren't very good for you.
If sugar was a new product on the market today it wouldn't get FDA approval thats how shitty it is.