Why a person is lactose intolerant? A person is lactose intolerant when he lacks lactase, the enzyme responsible for its breakdown.

Failure to digest lactose results in its transformation to lactic acid, acetic acid, hydrocarbon and carbon dioxide in intestine.   The phenomenon cause abdominal pain, bloating, flatulence and diarrhea.

What is the limit for lactose intolerant individual?

Lactose should not be taken by people with galacosemia. Effects of lactose to person with such illness is severe.

According to European Food Safety Authority (EFSA), most lactose intolerant individual can resist a single dose of 12 grams or a scattered intake of 20 to 24 grams within a day. Twenty four grams frequently have effects and 50 grams always have effects. On the other hand, some are person experiencing symptoms with as little as six grams.

Lactose free milk are alternatives for infants with lactose intolerance.