The Claim
Thyroid hormone acts as a permissive regulator of gonadal steroidogenesis by modulating the synthesis of testosterone, progesterone, and estrogen.
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.
Thyroid hormone doesn’t directly make sex hormones like testosterone or estrogen, but it helps the body’s sex glands work properly so they can produce these hormones at the right levels.
See the scientific wording
Thyroid hormone is a permissive regulator of gonadal steroidogenesis, modulating the synthesis of testosterone, progesterone, and estrogen.
What the research says
3 studiesThis study gave people extra thyroid hormone (T3) and found that their testosterone levels went up, which means thyroid hormone helps the body make more sex hormones — supporting the idea that it 'permits' or enables this process.
Study: Molecular Mechanisms of Thyroid Hormone-stimulated Steroidogenesis in Mouse Leydig Tumor Cells
This study found that a thyroid hormone (T3) makes mouse testicle cells produce more of the sex hormones testosterone and progesterone by turning on key genes, showing that thyroid hormone helps control these sex hormones — just like the claim says.
Study: Thyroid Hormone Deiodination and Action in the Gonads.
This study shows that thyroid hormone helps the testes make sex hormones like testosterone — without the right amount of thyroid hormone, hormone production goes wrong. This supports the idea that thyroid hormone is needed for sex hormones to be made properly.
Related videos
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.