What happens if you're Lactose Intolerant and eat dairy?

What exactly is Lactose Intolerance? Why are some people unable to eat dairy? If you're Lactose Intolerant, does that mean you can never eat ice cream again? For today's fun 5 Minute SMARTYQUIZ - check out the SMARTYQUIZ email. If you're not getting our free SMARTYQUIZ email, you are really missing out on making fun memories & locking in the learning with our research-backed gamification - it's our gift to you 3 times a week! Sign up here. For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.