7 dairy-free foods this dietitian swears by

Food allergies are a growing concern, currently affecting about 8 percent of children and 11 percent of adults in the United States. Milk is one of the nine most common allergens; peanuts, tree nuts, eggs, wheat, soy, fish, shellfish, and sesame also make the list.

Not all dairy allergies are the same; cow milk allergies—often found in younger children—cause an immune reaction that can result in hives, vomiting, trouble breathing, and wheezing. Allergies differ from lactose intolerance, which involves the digestive system. Some people can't fully digest lactose, the sugar found in milk, which can result in gas, bloating, abdominal pain, and diarrhea.

If you or a family member were recently diagnosed with a dairy allergy or intolerance, there are plenty of milk-free meals and snacks your whole household can enjoy. To round up some of the best, and help you avoid sneaky sources of dairy, we enlisted the help of Lauri Watson, a registered dietitian with Summerville Medical Center in Summerville, South Carolina.

To get you started on your milk-free grocery haul, Watson says, "Nuts, fruits, and veggies are going to be naturally dairy free." Some treats, like angel food cake, are typically dairy-free, according to Watson. As with any prepackaged food, it's always best to check the label to be sure. Dairy-free treats that are high in calories and sugar should be reserved for birthdays or other special occasions.