Sucrase

Sucrase breaks down sucrose to glucose and fructose. It’s secreted by the tips of the villi of the epithelium of the small intestine.

Sugar

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When sucrase isn’t secreted in the small intestine it’s called sucrose intolerance, or Congenital Sucrase-Isomaltase Deficiency. The result is excess gas production and often diarrhea and malabsorption. Sucrase production is also reduced in celiac sprue. Its levels increase in pregnancy, lactation and diabetes.

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