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Lactase Deficiency and Lactose Intolerance

Lactose intolerance occurs when the cells that line the small intestine are unable to produce enough of the enzyme lactase, which is needed to break down the milk sugar lactose into the simple sugars glucose and galactose that the body can absorb. Lactose intolerance, which is sometimes wrongly called milk intolerance, is not the same as a milk allergy. Unlike milk allergy, lactose intolerance does not involve the immune system, a key player in all […]