Lactose intolerance is not an allergy. It just means the body does not produce the digestive enzyme (lactase) that breaks down lactose into simple sugars.
Lactaid is an enzyme supplement. There are also milk products for the lactose intolerant, which come with lactase as an added ingredient. Since the lactose is already broken down, they taste noticeably sweeter, but otherwise, it's just milk.
An added bonus: lactase-added milk keeps for about two months. Normal pasteurized milk keeps for about two weeks.
