Celiac disease, which is sometimes referred to as celiac sprue, sprue, or gluten intolerance, makes it difficult for the body to properly absorb nutrients from foods. Excitingly, researchers have actually found that the thyroid antibodies will disappear after 3 to 6 months of a gluten-free diet in some individuals, thereby preventing thyroid disease from developing, or curing it later!
For more information on the symptoms of celiac disease, and how it's diagnosed, read: Research Links Celiac Sprue Gluten-Intolerance to Autoimmune Thyroid Disease

