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Lactose Intolerance: Causes

Posted by 2019-01-25 00:00:00
Lactose Intolerance: Causes

Lactose Intolerance: Causes
 
Lactose intolerance occurs when your small intestine doesn't produce enough of an enzyme (lactase) to digest milk sugar (lactose).
If you're lactase deficient, lactose in your food moves into the colon instead of being processed and absorbed. In the colon, normal bacteria interact with undigested lactose, causing the signs and symptoms of lactose intolerance. There are three types of lactose intolerance:

Primary lactose intolerance
This is the most common type of lactose intolerance. People who develop primary lactose intolerance start life producing plenty of lactase — a necessity for infants, who get all their nutrition from milk. As children replace milk with other foods, their lactase production normally decreases, but remains high enough to digest the amount of dairy in a typical adult diet.
In primary lactose intolerance, lactase production falls off sharply, making milk products difficult to digest by adulthood.

Secondary lactose intolerance
This form of lactose intolerance occurs when your small intestine decreases lactase production after an illness, injury or surgery involving your small intestine. Among the diseases associated with secondary lactose intolerance are celiac disease, bacterial overgrowth and Crohn's disease.

Congenital or developmental lactose intolerance
It's possible, but rare, for babies to be born with lactose intolerance caused by a complete absence of lactase activity. This disorder is passed from generations and is called autosomal recessive, meaning that both the mother and the father must pass on the same gene variant for a child to be affected.

I will be talking about its treatment in the upcoming blog. Stay connected.

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