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When lactose intolerance is due to secondary lactase deficiency, treatment of the underlying disease may allow lactase activity to return to normal levels. [6] In people with celiac disease, lactose intolerance normally reverts or improves several months after starting a gluten-free diet , but temporary dietary restriction of lactose may be needed.
Lactase (EC 3.2.1.108) is an enzyme produced by many organisms and is essential to the complete digestion of whole milk. It breaks down the sugar lactose into its component parts, galactose and glucose. Lactase is found in the brush border of the small intestine of humans and other mammals.
A deficiency in digestive enzymes can also cause some types of food intolerances. Lactose intolerance is a result of the body not producing sufficient lactase to digest the lactose in milk; [ 25 ] [ 26 ] dairy foods which are lower in lactose, such as cheese, are less likely to trigger a reaction in this case.
Lactase persistence or lactose tolerance is the continued activity of the lactase enzyme in adulthood, allowing the digestion of lactose in milk. In most mammals , the activity of the enzyme is dramatically reduced after weaning . [ 1 ]
2 Lactose malabsorption. 3 Hypolactasia. 4 Is not an allergy. 5 References. Toggle the table of contents. Wikipedia: VideoWiki/Lactose intolerance terminology. Add ...
Lactose is a disaccharide sugar composed of galactose and glucose that is found in milk. Lactose can not be absorbed by the intestine and needs to be split in the small intestine into galactose and glucose by the enzyme called lactase; unabsorbed lactose can cause abdominal pain, bloating, diarrhea, gas, and nausea. [citation needed]
Both the unabsorbed lactose and products of fermentation raise the osmotic pressure, attracting water into the bowels, so water flows in and this influx of water is what leads to diarrhea. Now, in super rare cases, lactase deficiency can be a congenital, meaning infants would be deficient from birth.
In breastfeeding women, low milk supply, also known as lactation insufficiency, insufficient milk syndrome, agalactia, agalactorrhea, hypogalactia or hypogalactorrhea, is the production of breast milk in daily volumes that do not fully meet the nutritional needs of her infant.