Has porcine thyroid been proven to be superior to bovine thyroid for the treatment of hypothyroidism in humans?
I am asking because I am about to give up. Last year, I spent around 800€ (ca 600 GBP) on prescription NDT (Erfa), and before that about the same amount on Armour...and I am not getting the results I expected.
I know there is Thai NDT, but I would hate to depend on deliveries from an Asian country and always worry about customs.
Unfortunately, only Armour and Erfa are available in Belgium.
I am seriously considering switching to bovine thyroid...just curious if there is any reason prescription NDT only uses porcine thyroid? Is it somehow closer to human thyroid?