The Claim
In healthy older adults, elevation of thyroid hormone levels through either recombinant human TSH or oral T3 administration is associated with an 8–12% reduction in prolactin levels within 48–72 hours, with a more pronounced effect observed in men, indicating that thyroid hormone suppresses prolactin secretion independently of sex or the type of thyroid hormone challenge.
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 older adults get more thyroid hormone—either through a shot or a pill—their prolactin levels drop by about 8–12% in just a couple of days, and this drop is bigger in men, suggesting thyroid hormone naturally lowers prolactin no matter how you give it or whether you're male or female.
See the scientific wording
In healthy older adults, thyroid hormone elevation via either recombinant human TSH or oral T3 is associated with an 8–12% decrease in prolactin levels within 48–72 hours, with a more pronounced effect in men, suggesting thyroid hormone suppresses prolactin secretion independently of sex or challenge type.
What the research says
1 studyThe study gave older people two different thyroid-related treatments and found both lowered prolactin (a hormone) by about 9–12%, just like the claim said. It also found this happened in both men and women, mostly — though one treatment worked better in men only, which makes the claim about sex being irrelevant a little too broad.
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.