Definition of lactose
the disaccharide sugar of milk and dairy products, C12H22O11, (a product of glucose and galactose) used as a food and in medicinal compounds.
Examples of lactose 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.
- Lactose intolerant individuals have insufficient levels of lactase, the enzyme that metabolizes lactose into glucose and galactose, in their digestive system .
- Assessment and Treatment of Lactose Intolerance To assess lactose intolerance, intestinal function is challenged by ingesting more dairy products than can be readily digested.
- However, those living among societies that are largely lactose-tolerant may find lactose intolerance troublesome.
- About 44% of lactose intolerant women regain the ability to digest lactose during pregnancy.
- 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.
- 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.
- 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.
- Lactase is absent in most adult humans and for them lactose, like most poly-saccharides, is not digested in the small intestine.
Absorption of Monosaccharides, Amino Acids, Dipeptides, Tripeptides, Lipids, Electrolytes, Vitamins, and Water
- Lactase is absent in most adult humans and for them lactose, like most polysaccharides, are not digested in the small intestine.