Lactose intolerance is caused by
A) too much milk and dairy products in the diet.
B) exposure to pasteurized milk when young.
C) an insufficient production of the enzyme lactase.
D) increased production of the enzyme lactose.

Question

Quizplus · Accepted Answer

Lactose intolerance is caused by the body's inability to produce enough lactase, which is the enzyme that breaks down the lactose in milk and dairy products. It is not caused by consuming too much dairy or exposure to pasteurized milk. Increased production of lactose is not a factor in lactose intolerance.

Lactose Intolerance Is Caused by