[bradser]

If anyone has been on synthroid and it stops working for you, check with your doctor about switching to natural desiccated thyroid, made a big difference for me. Also see if avoiding goitrogenic foods works for you (like https://en.wikipedia.org/wiki/Cruciferous_vegetables); keeping a food diary for a few months proved to me how impactful they are for me, YMMV.

[sorum]

Would the interference from cruciferous vegetables show up on the bloodwork, i.e TSH levels and free T3, T4?