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 the proteins as harmful, leading to symptoms such as hives, stomach pain, or difficulty breathing. This condition 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 baked goods, to prevent allergic reactions and maintain their health.