thanks for that info. I actually used to see Dr. Brownstein! I doubt I could get an appointment now, he's so popular and I don't think taking new patients (and I've probably lost my established patient status), but I haven't seen a medical doctor in years anyway, and I'm trying to figure out how to experiment with Iodine without doing the loading test/ urine analysis going through a doctor's office. Not sure yet if there's an accurate way to test myself.