"Gluten-free" refers to a diet that excludes gluten, a protein found in grains like wheat, barley, and rye. People who follow this diet often do so because they have celiac disease, an autoimmune disorder that causes harmful reactions to gluten. Others may choose gluten-free options to manage gluten sensitivity or for personal health reasons. Foods labeled as gluten-free include fruits, vegetables, meat, fish, dairy, and grains like rice and quinoa. Many products are now available in gluten-free versions, such as bread, pasta, and snacks, making it easier for those who need to avoid gluten to enjoy a variety of meals.