What is "if lactose is a disaccharide?

Lactose is indeed a disaccharide, meaning it is composed of two sugar molecules bonded together. Specifically, lactose is made up of one molecule of glucose and one molecule of galactose connected by a beta-1,4 glycosidic bond. This makes lactose a type of carbohydrate that must be broken down by the enzyme lactase in the small intestine in order to be absorbed by the body. Some individuals have lactose intolerance, which means they do not produce enough lactase and are unable to properly digest lactose, leading to symptoms such as bloating, gas, and diarrhea after consuming dairy products.