In a message dated 97-07-15 04:25:20 EDT, you write: << ' m with you on this one!! Over medicated myself on 2000 mg of kelp tablets per day and nearly sent myself loopy! Very weird sensation - lips tingling, head swaying, spaced out feeling - couldn't work out what it was until I read the "Thyroid - YOur Home REference" book. Stay away from Lethcin too. >> Hi, Don't forget that multivitamin/mineral supplements have iodine in them also--usually the RDA of 150 mcg. This amount, coupled with iodized salt, seafood (sushi?) and other sources where it occurs naturally can add up to too much. I have quit taking multivitamins. ZeeSwan