People mainly take Iodine for energy, mood, hormones. Based on 91 first-hand reports and 853 meta-analyses & systematic reviews in the medical literature. Ranked #445 of 1,974 overall.
Of reports that state an outcome, 47% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: There is emerging evidence of the role of some specific antiseptics (chlorhexidine) prior to urinary catheterisation, in reducing CAUTIs, and some potential benefit to the role of antiseptics more generally in reducing bacteriuria.
PubMed 34103320 ↗Conclusion: © RSNA, 2022 Online supplemental material is available for this article. See also the editorial by Mann and Veldhuis in this issue.
PubMed 36154284 ↗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.
PubMed 38243784 ↗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.
PubMed 37811643 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“I currently take: - Iodine”
“Been taking 10-30mg Iodine with 200ug selenium, 1-3g magnesium and 1g C vit for months.”
“Iodine is the shit I always forget adding it to my stack”
“When I first started taking it there was a noticeable energy and mental difference.”
“Also take Vitamin D and iodine, and use a brita pitcher to minimize drinking chlorine and fluorine.”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate