Lactose is a disaccharide composed of galactose and glucose, which form a β-1→4 glycosidic linkage. Its systematic name is β- D -galactopyranosyl- (1→4)- D -glucose.

Dec 26, 2025 · Lactose is a natural sugar found in milk that has uses in drugs and food. Some have difficulty digesting it. Reviewed by a board-certified physician.

Oct 29, 2024 · Lactose is a natural, complex sugar produced in all mammalian milk that’s difficult to breakdown unless you have lactase, a protein, in your small bowel.

Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called lactase.

Dec 16, 2025 · Lactose, carbohydrate containing one molecule of glucose and one of galactose linked together. Composing about 2 to 8 percent of the milk of all mammals, lactose is sometimes called …

May 6, 2024 · Lactose is sometimes referred to as “milk sugar” because it is only found naturally in the milk of mammals—including cows, goats and humans. Milk from cows and goats is used to make …

Learn about lactose intolerance, a condition in which you have symptoms—such as bloating, diarrhea, and gas—after you consume foods or drinks that have lactose.

Lactose is usually found in products containing milk or milk solids. However, the amount of lactose in different foods varies. Below are some general amounts of lactose in different kinds of dairy foods.

Apr 26, 2025 · If you feel stomach pain, bloating, cramping, or have diarrhea after you eat or drink dairy products, you may be lactose intolerant.

Lactose, commonly known as milk sugar, is a disaccharide composed of two simple sugars: glucose and galactose. Found predominantly in dairy products, it plays a significant role in nutrition, particularly …