FRUCTOSE: IS Natural and originates in fruits, cereals, vegetables and honey. It is sweeter than ordinary sugar and has the same amount of calories. In some recipes, the use of fruit does not require the use of other sweeteners, since they are rich in fructose; the more ripe, the more fructose the fruit contains. On the other hand, the less ripe, the more starch will be present (it turns into fructose during ripening).