If your family is just getting into this magical world, here's a quick age guide for enjoying Harry Potter with your kids. Keep in mind that all kids are different, so assess your child's ability to handle frights and peril before you see the movies or read the books.6-7: A great age to begin.f your family is just getting into this magical world, here's a quick age guide for enjoying Harry Potter with your kids. Keep in mind that all kids are different, so assess your child's ability to handle frights and peril before you see the movies or read the books. 6-7: A great age to begin.
Best Answer: Dairy products are known to cause constipation, but not because of lactose intolerance - lactose intolerance causes diarrhea.
Lactose intolerance is when someone has difficulty absorbing and digesting lactose, a type of sugar found in milk. It is a condition that can be associated with coeliac disease. Symptoms of lactose intolerance are similar to that of coeliac disease and include: 1  nausea. 2  bloating. 3  stomach pain and/or cramps. 4  diarrhoea.