Galactose is a monosaccharide or a type of sugar molecule that is commonly found in milk and other dairy products. This sugar provides energy to the cells in the body and is essential for maintaining good health. However, for those who are lactose intolerant, galactose can cause digestive issues as it is present in lactose. There are several synonyms for galactose, including lactose, milk sugar, beta-D-galactopyranose, and galactosylglucose. Galactose plays a crucial role in the formation of glycolipids and glycoproteins, which are essential for many body functions. Its synonyms are frequently used in scientific studies related to nutrition, metabolism, and healthcare.