The Claim
In healthy older men, a single oral dose of triiodothyronine (T3) is associated with a 19.3% increase in luteinizing hormone (LH) levels within 72 hours, whereas recombinant human TSH does not produce this increase, indicating that T3 specifically modulates gonadotropin secretion.
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.
When healthy older men take a single pill of a thyroid hormone called T3, their body makes more of a hormone that tells the testes to work harder — but another hormone called TSH doesn’t do this, which suggests T3 has a special role in controlling this process.
See the scientific wording
In healthy older men, a single dose of oral triiodothyronine (T3) is associated with a 19.3% increase in luteinizing hormone (LH) within 72 hours, while recombinant human TSH does not produce this effect, suggesting T3 specifically modulates gonadotropin secretion.
What the research says
1 studyThe study gave older men either a thyroid hormone pill (T3) or a different shot (rhTSH) and found that only the pill made a key reproductive hormone (LH) go up — exactly what the claim said.
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.