2. Enriched flour.
Enriched flour has been linked to higher levels of thyroid hormone. You’ll typically find it in white pasta, bread, rice, cereal, and crackers. Try substituting some whole grains instead. Tasty mealtime options include 100% whole bread, brown rice, barley, and quinoa. For snack time, steer clear of pretzels, cookies, brownies, and cake. These choices are also more healthful, but still satisfying: air-popped popcorn, nuts, and seeds. It can be hard to pass up a doughnut for a dried date, but it will get easier with time.