I also had my thyroid tested, the results normal. But, my body temp is always way low and resting heart rate has been high. Since using Superfood with kelp, purple dulse and chlorella among the other herbs, exercise and healthy Diet I don't seem to suffer the symptoms of hypothyroidism though the temp is still low. The change has not come overnight but gradually gets better as we continue a healthy lifestyle. Bob...do you have other recommendations?