I use coconut milk or almond milk.  I won't try lactose free milk because cows are still grain fed and that goes into the milk. My doctor told me, too, that it is not uncommon for people as they get older to stop being able to produce the enzymes in our bodies that break down milk as well. Many become lactose intolerant as we age, as I did. Anyhow, coconut milk and almond milk are great in recipes instead!