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Where is lactase produced in the body?

Quick Answer

Lactase is produced in the lining of the small intestine, especially the cells of the intestinal villi. It helps digest lactose in milk.

The Full Story

Lactase is an enzyme made by cells in the small intestine, particularly on the surface of the villi. It breaks lactose into simpler sugars that can be absorbed into the bloodstream. In many humans, lactase production decreases after childhood, leading to lactose intolerance. Populations with a history of dairying often have higher rates of lactase persistence into adulthood.

Key Facts

1.Produced in the small intestine
2.Located on the intestinal villi
3.Breaks down lactose

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"The enzyme that lets you digest milk is made in your small intestine."

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