lactose intolerance

Should You Give Cats Milk?

Pop culture often shows cats happily sipping saucers of milk, but giving a cat milk isn't actually the best treat for it -- or you. Learn why in this episode of BrainStuff.

Apparently there are not many people who can complete the gallon-of-milk challenge without puking their guts out. It is nearly impossible for someone to drink a gallon of milk in an hour without throwing up. But why? What makes milk so difficult to drink?