Evidence proposes that maternal calcium (Ca) supplement during pregnancy may be inversely associated with the offspring's blood pressure (BP) level.
Link to Publication: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4746875/
Jamshidi F, Kelishadi R. A systematic review on the effects of maternal calcium supplementation on offspring's blood pressure. Journal of Research of Medical Sciences. 2015;20(10):994-999.