Quote Originally Posted by Eric View Post
So wouldn't you regain that ability if you just drank a lot of milk again, or are you theorizing that once gone, the digestive enzymes/bacteria won't ever be back in your body?

BTW, I'm lactose-intolerant too but I dislike milk, so I only mind it when it comes to cheese and yogurt and what not.
My understanding is that the body loses its ability to produce the lactose enzyme. Added to that is that milk is species specific. Human beings were meant only to be able to digest human breast milk. And then only as an infant. Cow's milk is only really suitable for calves, as it allows them to put on a lot of weight in a short period of time.

Having said that, lactose-free milk and yogurt are great sources of high quality protein.