
Lactose - Wikipedia
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.
Lactose intolerance - Symptoms & causes - Mayo Clinic
Sep 22, 2025 · Lactose intolerance is a condition that makes it hard to digest the sugar in milk and milk products, called lactose. People with lactose intolerance often have diarrhea, gas and bloating after …
Lactose: Uses, Health Benefits, and Lactose Intolerance
Oct 18, 2024 · Lactose is white and odorless, and you may sometimes see or hear it referred to as "milk sugar." Lactose is only found in milk from mammals, so plant-based milk products like almond milk …
What Is Lactose? - Cleveland Clinic Health Essentials
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.
5 Foods High in Lactose to Avoid - WebMD
Sep 15, 2024 · Lactose is a sugar naturally found in dairy products like milk, butter, yogurt, and more. Learn which 5 foods to avoid for lactose intolerance.
Definition & Facts for Lactose Intolerance - NIDDK
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 | Milk Sugar, Digestion & Nutrition | Britannica
Nov 10, 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 …
What Is Lactose? - IFIC
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 …
5 Signs and Symptoms of Lactose Intolerance - Healthline
Jan 13, 2023 · Lactose intolerance is a condition characterized by symptoms such as stomach pain, bloating, gas and diarrhea, which are caused by lactose malabsorption (1).
Lactose Intolerance Causes, Dairy Foods, Symptoms & Tests
Jul 14, 2015 · Lactose intolerance is an inability to digest and absorb the sugar in dairy products. Learn the causes, symptoms, diagnostic tests, treatment, and complications of lactose intolerance, as well …