Lactase is an enzyme that breaks down lactose, the sugar in milk. Some people don't make enough lactase and are unable to digest lactose well on their own. Lactase splits lactose to produce the ...

The gene that enables East Asian adults to drink milk without getting side effects like stomach cramps was probably inherited ...

If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do ...