The Claim
In adults with Hashimoto's thyroiditis who are not deficient in selenium, selenium supplementation is associated with a 63% higher relative risk of all-cause mortality over a five-year period, with no observed increase in thyroid cancer or thyroidectomy.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Among adults with Hashimoto's thyroiditis who have normal selenium levels, taking selenium supplements may be linked to a 63% higher chance of dying from any cause over five years, even though there is no evidence it increases the risk of thyroid cancer or the need for thyroid surgery.
See the scientific wording
In adults with Hashimoto's thyroiditis not deficient in selenium, selenium supplementation is associated with a 63% higher relative risk of all-cause mortality over five years, raising concerns about long-term safety despite no observed increase in thyroid cancer or thyroidectomy.
What the research says
1 studyThis study found that taking selenium supplements didn't help people with Hashimoto's and might actually make them more likely to die sooner, even though it didn't increase cancer or need for surgery. So, the supplements might be more harmful than helpful for these patients.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.