It seems commonly accepted now that progestagenic steroids like nandrolone and trenbolone elevate prolactin levels and it is by this mechanism they are meant to produce produce certain side effects.
I would like to ask where exactly the evidence for this proposed mechanism is? Are there some research papers regarding these steroids and prolactin levels, in which case I'd love some references.
Or if not, how many people have actually had blood work done during a cycle and actually measured their prolactin levels. If anyone does have any hard data, I'd love to hear about it.