The Claim
L-selenomethionine supplementation at 83 mcg/day during pregnancy has no significant effect on thyroid hormone levels (TSH, FT3, FT4), thyroid volume, or echogenicity in women with autoimmune thyroiditis, suggesting its biological impact is limited to modulation of autoantibodies rather than structural or functional changes in the thyroid.
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 83 micrograms of L-selenomethionine daily during pregnancy does not change thyroid hormone levels, thyroid size, or tissue appearance in women with autoimmune thyroiditis. This suggests the supplement affects immune markers related to the thyroid without altering thyroid structure or function.
See the scientific wording
L-selenomethionine supplementation at 83 mcg/day during pregnancy does not significantly alter thyroid hormone levels (TSH, FT3, FT4), thyroid volume, or echogenicity in women with autoimmune thyroiditis, indicating its effect is specific to autoantibody modulation rather than thyroid structure or function.
What the research says
1 studyTaking this specific form of selenium during pregnancy helped lower harmful antibodies in moms with thyroid issues, but didn’t change how their thyroid looked or worked—so it’s helping the immune system, not the thyroid itself.
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.