Lactase

Lactase deficiency may also occur as a result of intestinal diseases such as celiac sprue and gastroenteritis, or it may follow gastroduodenal surgery.
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Acquired lactase deficiency comes on gradually over time. It also seems to run in families. It affects certain ethnic groups more than others. The enzyme lactase is present in the baby's intestine from about the middle of pregnancy onward.
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Lactose must be broken down by lactase into the simple sugars galactose and glucose in order to be absorbed.
Lactase
An intestinal enzyme that is needed to digest lactose. The lack of lactase results in what is called Lactose Maldigestion .
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Lactase is normally produced in the small intestine where it breaks lactose down into a form that can be absorbed by the blood. A lack of lactase can cause uncomfortable symptoms for some people.
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Normally the lactase enzyme is found in the small intestines. It breaks the lactose into glucose and galactose -- the digestible sugars I just mentioned.
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Some people use lactase tablets, which contain the enzyme that helps break down lactose. You can get this in a tablet form, and you have to take it before you eat the food because otherwise it doesn't work.
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While most people can digest lactose with no difficulty, some have trouble because they do not produce the enzyme lactase, which splits lactose into digestible parts.
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Babies are usually born with higher levels of lactase, so lactose intolerance usually only begins after the age of about two, as the body begins to produce less of the enzyme. However, many people don't experience symptoms until they're much older.
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Lactose intolerance is due to an inability to produce lactase, the enzyme that digests milk sugar. The wall of the gastrointestinal tract normally produces this enzyme.
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The intestinal wall is not able to make the digestive enzyme, lactase, which is needed to split lactose into glucose and galactose.
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Take over-the-counter tablets or liquids containing the enzyme lactase before you eat or drink products containing milk.
Lactose-reduced dairy products are available in grocery stores.
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Lactose: The sugar found in milk. The body uses the enzyme lactase to break down lactose into galactose and glucose.
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Digestive enzymes, such as lactase supplements, help digest carbohydrates and may allow you to eat foods that normally cause gas.
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People with celiac disease may also experience lactose intolerance because they don't produce enough of the enzyme lactase, which breaks down the sugar in milk into a form the body can absorb.
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