Have you heard of Stevia extract ( manufactured by KAL company) used as a sweetener? Some say that it is better than artificial sweeteners as Stevia is extracted from natural herbs. It is an extremely sweet herb, thus you may have to use a very small quantity ( even less than a gram will be equivalent to a teaspoonful/ 5 grams of sugar). Whereas I was not able to find much about the merits of Stevia as a sweetener some people just love it.