How is lactose digested?
Lactose, the main sugar found in milk and other dairy products, is a disaccharide. It is composed of two simple sugars, galactose and glucose. In order to be absorbed by the body, lactose must first be broken down into its component sugars. This process of digestion begins in the small intestine, where the enzyme lactase is produced. Lactase breaks down lactose into galactose and glucose, which can then be absorbed into the bloodstream.
If a person does not produce enough lactase, they may experience lactose intolerance. Lactose intolerance is a condition in which the body is unable to fully digest lactose, leading to symptoms such as bloating, gas, and diarrhea. Lactose intolerance is a common condition, affecting up to 75% of the world's population.
There are a number of ways to manage lactose intolerance, including:
- Avoiding dairy products or consuming them in small amounts
- Taking lactase supplements
- Choosing lactose-free dairy products
If you experience symptoms of lactose intolerance, it is important to talk to your doctor to get a diagnosis and discuss management options.