The Claim
Selenium supplementation significantly reduces thyroid peroxidase antibody (TPOAb) levels in adults with chronic autoimmune thyroiditis receiving levothyroxine, with mean reductions of 237 IU/mL at 3 months, 407 IU/mL at 6 months, and 327 IU/mL at 12 months, but has no effect on thyroid-stimulating hormone (TSH) levels or clinical symptoms.
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.
Taking selenium supplements may lower levels of thyroid peroxidase antibodies in adults with chronic autoimmune thyroiditis who are already taking levothyroxine, with the greatest reduction seen at six months. However, it does not change thyroid-stimulating hormone levels or improve symptoms related to the condition.
See the scientific wording
Selenium supplementation significantly reduces thyroid peroxidase antibody (TPOAb) levels in adults with chronic autoimmune thyroiditis, with mean reductions of 237 IU/mL at 3 months, 407 IU/mL at 6 months, and 327 IU/mL at 12 months in those receiving levothyroxine, but does not improve thyroid-stimulating hormone (TSH) levels or clinical symptoms.
What the research says
1 studyThis study found that taking selenium pills lowers harmful antibodies in the thyroid for people with autoimmune thyroid disease, just like the claim says—but it doesn’t help how people feel or their thyroid hormone levels. So the numbers are right, but it’s not a magic cure.
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.