A wheat allergy is an immune response to proteins found in wheat, a common grain used in many foods. When someone with this allergy consumes wheat, their body mistakenly identifies these proteins as harmful, leading to symptoms such as hives, difficulty breathing, or digestive issues. This allergy is different from celiac disease, which is an autoimmune disorder triggered by gluten, a protein in wheat. People with a wheat allergy must avoid all products containing wheat, including bread, pasta, and certain baked goods, to prevent allergic reactions and maintain their health.