Lactose intolerance and Lactase deficiency

Lactose intolerance noun - Congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyze lactose.

Lactase deficiency is a synonym for lactose intolerance. In some cases you can use "Lactase deficiency" instead a noun phrase "Lactose intolerance".

Lactase deficiency noun - Congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyze lactose.

Lactose intolerance is a synonym for lactase deficiency. You can use "Lactose intolerance" instead a noun phrase "Lactase deficiency".