Across 177 first-hand reports, people mentioned a side effect 9 times (about 5 per 100 reports). The most common: hyperthyroidism, crashes, anger. User reports show what people notice — they can't tell you whether Iodine is safe for you.
“I tried to go back to that dosage and couldn't handle it (hands shaking, burning head, anxiety).”
“My anxiety has almost been cleared for the past six months... Sleep is more vivid and more efficient.”
“Iodine. Works exactly as advertised but easy to take too much. It gave me hyperthyroidism symptoms.”
“I tried Iodine,SSRI,Selenium,Rhodiola Rosea,Tongkat Ali,Citrulline,Carnivore Diet,Maca but nothing worked”
Conclusion: Conclusions: In people with HT without THRT, selenium was effective and safe in lowering TSH, TPOAb, and MDA levels. Indications for lowering TPOAb were found independent of THRT.
Conclusion: The certainty of evidence for the meta-analyses was low (n = 2) or very low (n = 46). Overall, the available evidence points to both risks and benefits associated with a vegan diet among children, although more and better designed studies are needed.