In this video, San Diego Health host Susan Taylor talks with Scripps allergist and immunologist Hannah Wangberg, MD, about food allergies and intolerances. Choosing to not eat peanuts or shellfish is a matter of personal taste for some people, but for those with food allergies, it’s a much more serious decision. Reactions to food allergies can range from hives and itching to difficulty breathing and anaphylaxis, a potentially life-threatening condition.