Allulose is a type of sugar that resembles fructose, which is the sugar that occurs naturally in fruit. It is available in a granulated form and looks like everyday sugar. The scientific name for sugar is sucrose. Allulose is a low calorie sweetener that has 70% of the sweetness of sucrose. According to the Food and Drug Administration (FDA), allulose provides about 0. 4 calories per gram (g), which is significantly lower than the 4 calories per g in sugar. In addition, the body absorbs allulose but does not metabolize it into glucose, so it is virtually calorie free. According to the FDA, allulose has little to no effect on blood glucose or insulin levels. I use it when I make keto ice cream because it helps keep the ice cream from getting so darn hard. I have type 2 diabetes and have had no problems at all with it. I also use Lakanto for some things.