What should I know to care for someone with primary lactose intolerance?

Caring for someone with primary lactose intolerance mostly involves monitoring and adjusting that person's diet. Make sure that they reduce the amount of dairy products they consume. If your loved one has a hard time completely eliminating dairy, suggest trying a variety of dairy products to see which ones cause symptoms, or eating smaller servings of dairy at one time. It's also important to make sure they're still getting enough calcium, so provide other calcium-rich foods like orange juice, broccoli, and almonds, or make sure they take vitamin supplements.