Does anyone know if the thyroid gland stores up chemicals from the body? I am looking in to switching from Nutri Thyroid (from grass fed New zealand cows) to Thyroid S (Thai made using porcine).
The only reason I am switching is that I need a LOT of Nutri Thyroid per day and the cost, along with other supplements, is not sustainable for me. I live in Thailand and am concerned that the chemical/antibiotic/GM use in farming here is pretty heavy, coupled with less stringent testing. Should I be concerned what ends up in the dessicated thyroid?