Gluten intolerance, also known as non-celiac gluten sensitivity, is a condition where individuals experience discomfort after consuming gluten, a protein found in wheat, barley, and rye. Symptoms can include bloating, stomach pain, fatigue, and headaches. Unlike celiac disease, which is an autoimmune disorder, gluten intolerance does not cause damage to the intestines but can still lead to significant discomfort. People with gluten intolerance often find relief by avoiding gluten-containing foods. This means they may choose alternatives like rice, quinoa, or gluten-free bread. It's important for those experiencing symptoms to consult a healthcare professional for proper diagnosis and management.