A gluten-free diet is a dietary approach that involves avoiding gluten, a protein found in wheat, barley, and rye. This diet is essential for people with celiac disease, non-celiac gluten sensitivity, or wheat allergy. Gluten-free foods include fruits, vegetables, meat, fish, dairy, and gluten-free grains such as quinoa, rice, and corn. Gluten-containing foods such as bread, pasta, and baked goods must be avoided. Some people may also choose to follow a gluten-free diet for other health reasons, such as to reduce inflammation or improve digestive health. However, it is important to note that a gluten-free diet can be challenging to follow and may require careful planning to ensure adequate nutrient intake.