Allergies can be very tricky health disorders. Sometimes allergic reactions occur even in response to the most harmless, at the first sight, products. Lactose intolerance is a vivid example of such situation. People with this form of allergy cannot tolerate a particular form of sugar, found in milk. If you have ever heard of lactose intolerance – you are welcomed to check your knowledge of basic facts on this disorder with the online quiz. Otherwise, you can browse the Allergy section at Pillwatch.com and find the correct answers for the questions of our Lactose Intolerance Quiz.