Disaccharides (also called double sugar) are carbohydrates that are made up of two monosaccharides.<ref>Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998</ref> The monosaccharides are linked through a Glycosidic bond. Disaccharides are formed by a dehydration reaction between two monosaccharides. The three major disaccharides are sucrose, lactose, and maltose.<ref>Disaccharide</ref>