Calcium And Prolactin
Calcium (Ca) infusions in children with calcium metabolism disorders
https://www.ncbi.nlm.nih.gov/pubmed/7293666
Ca induced a significant decline of serum Prl in most subjects
How relevant this is to healthy human men is unclear.
In vitro study: severe calcium deficiency reduces prolactin in rat pituitary cells
http://www.jbc.org/content/260/12/7614.full.pdf