“…And how long does that suppression last from liver or cabbage? If you eat something and say you're not hyperthyroid, you're just normal, whatever that is, and you eat some liver, how long does it take for your thyroid to bounce back? Is that also just a matter of a couple of days? Yeah. And the fear of suppressing your thyroid gland itself by taking too much thyroid, that has been tested by using isotopes that they could tell where the thyroid was coming from.”