Celiac disease is a condition where the body's immune system reacts negatively to gluten, a protein found in wheat, barley, and rye. This reaction damages the lining of the small intestine, leading to various health problems. Adopting a gluten-free diet helps prevent this damage, allowing the small intestine to heal and improving overall health. A gluten-free diet can alleviate symptoms such as digestive issues, fatigue, and nutrient deficiencies. It also minimizes the risk of complications like osteoporosis, anemia, and infertility. Early diagnosis and strict adherence to a gluten-free diet can significantly improve the quality of life for those with celiac disease.