Lactose intolerance is a condition in which the body is unable to digest the sugar molecule lactose, the sugar present in milk and milk products. This condition occurs due to either diminished production or complete lack of the enzyme lactase. Lactase is the enzyme that acts on the sugar molecule, breaking it down into simple units, easing the process of metabolism. When the enzyme secretion is affected in the body, the body fails to digest the lactose molecule, resulting lactose intolerance. Secretion of lactase can be affected by genetic factors, injuries in the abdomen, illness or any surgery of the small intestine where the enzyme is present.
DISCLAIMER: This article is not based on real time studies.