Their next episode in their Understanding Your Blood Test Results series is all about the thyroid and the tests you can do to check if your thyroid gland is functioning properly. Dr Sandra Cabot and Naturopath Margaret Jasinska explain TSH, T4, T3, antibody and iodine testing and how to interpret the results. They also explain the many symptoms of thyroid dysfunction and that significant improvements can be made to thyroid health through dietary changes and supplementation.