3. Get More Iodine. Your Thyroid Needs Iodine to Function Properly.
If you don’t get enough in your diet—and most people don’t, since iodine isn’t present in many food sources today—your body can’t produce thyroid hormone.
Without thyroid hormone, your metabolism and energy levels tank. If you use salt, switch to iodized salt and eat more sea veggies, such as seaweed and kelp, to boost your intake.