The sugars in Agen prunes are a well-balanced combination of glucose, fructose and sorbitol. Each type has its own unique properties that, from a nutritionist's point of view, make prunes a food that is mid-way between the so-called "slow sugar" and "fast sugar" types. The sugars in Agen prunes also help to prevent hypoglycaemia and reduce hunger pangs and reactive feelings of hunger.