What is the difference between Vivinal® GOS and inulin?

Vivinal® GOS originates from a dairy source. It is derived from lactose, which consists of the monosaccharides glucose and galactose. Inulin is derived from chicory root and is of vegetable origin. Inulin consists of the monosaccharides fructose and glucose. The monomer fructose is not present in human milk.