3. Wheat
Celiac disease is a disorder in which the body cannot handle the gluten in grains like wheat, barley, and rye. For a reason that isn’t totally clear, people with celiac disease also have a higher risk for thyroid disorder. So if you have been diagnosed with celiac, avoiding gluten will be important for lots of reasons. Not only will it support healthy digestion, it will reduce your risk of developing a thyroid disorder as well.
On the other hand, if you do not have celiac or any of the risk factors for it (family history or certain autoimmune disorders), you might not be best served by avoiding bread. Most varieties are now required to be made with iodized salt. Just make sure you stick to whole wheat versions.