I am taking 50-100 mg Lugols since 2,5 years. My TSH never went up ( if u use Instagram check #stephylabor ) . It only ever went up when i took less than 50mg. My last TSH 5 months ago was even super low 0, something.
Whenever i take less than 50mg my boobs start to hurt right after or even before my ovulation.
Some ppl take up too much toxins (unknown or not) that they need at least 50mg per day. Hidden Bromides, hidden Fluorides, other goitrogens and other drück toxins in body tissue.