What is the sweetened natural sugar found in fruits called?

Fructose is recognized as the primary natural sugar found in many fruits. It belongs to a class of sugars known as simple sugars or monosaccharides and is notably sweeter than glucose. In fruits, fructose serves not only to provide sweetness but also to offer a quick source of energy and can contribute to the fruit's overall flavor. For instance, fruits like apples, pears, and berries contain significant amounts of fructose, which plays a role in their appeal and palatability.

Galactose, another monosaccharide, is found in dairy products and is not typically associated with fruit. Maltose is a disaccharide composed of two glucose molecules and is found in malted foods and beverages, while sucrose is a common disaccharide made up of glucose and fructose. Sucrose is often extracted from sugar cane or sugar beets rather than being directly linked to fruits in their natural state. Therefore, fructose is the most accurate answer regarding sugars specifically derived from fruits.