Definition of lactose intolerance
the inability to fully metabolize lactose.
Examples of lactose intolerance in the following topics:
- Lactose intolerance, also called lactase deficiency and hypolactasia, is the inability to digest lactose, a sugar found in milk and, to a lesser extent, in milk-derived dairy products.
- It is the most common cause of lactose intolerance as a majority of the world's population lacks these alleles.
- Assessment and Treatment of Lactose Intolerance To assess lactose intolerance, intestinal function is challenged by ingesting more dairy products than can be readily digested.
- It is important to distinguish lactose intolerance from milk allergy, an abnormal immune response (usually) to milk proteins.
- However, those living among societies that are largely lactose-tolerant may find lactose intolerance troublesome.
- Lactose intolerance is the inability to digest lactose, a sugar found in milk, due to a lack of the enzyme lactase.
- Although the sugar and lactose metabolizes to galactose, galactosemia is not related to and should not be confused with lactose intolerance.
- Lactose in food (such as dairy products) is broken down by the enzyme lactase into glucose and galactose.
- Treatment The only treatment for classic galactosemia is eliminating lactose and galactose from the diet.
- Infants with classic galactosemia cannot be breast-fed due to lactose in human breast milk and are usually fed a soy-based formula.
- Galactosemia is sometimes confused with lactose intolerance, but galactosemia is a more serious condition.
- Lactase is an enzyme that breaks down the disaccharide lactose into its component parts, glucose and galactose, which can also be absorbed by the small intestine.
- This condition is commonly known as lactose intolerance.
- Carbohydrates requiring bacterial assistance in digestion include: certain starches fiber oligosaccharides and sugars like lactose (in the case of lactose intolerance) and sugar alcohols mucus produced by the gut various proteins Fermentation Bacteria turn carbohydrates they ferment into short chain fatty acids (SCFAs) by a form of fermentation called saccharolytic fermentation.
- Mucosal abnormalities (e.g. celiac disease , cows' milk intolerance, soy milk intolerance, and fructose malabsorption) may lead to malabsorption.
- Lactase deficiency, which prevents the breakdown of lactose, is a common cause of malabsorption.
- For example, patients may be put on a gluten-free diet for celiac disease or taught lactose avoidance for lactose intolerance.