I have previously posted on vitamin D and fertility, but I think it bears repeating, since many couples have a difficult time in trying to produce a pregnancy.
A recent report adds credence to the idea that infertility may be due in great part to vitamin D deficiency. Dr. Anne Clark, who works at the Fertility First clinic in Sydney, Australia, assessed the blood levels of vitamin D among about 800 men who were unable to produce a pregnancy in their wives. About a third had low levels of vitamin D. Interestingly, after a regimen of lifestyle changes (stopped smoking, coffee drinking and alcohol consumption) and vitamin D supplementation, 40% of the men were able to impregnate their wives, probably due to improvement in the quality of sperm.
Dr Clark stated that "Vitamin D and folate deficiency are known to be associated with infertility in women, but the outcomes of the screening among men in our study group came as a complete surprise." Though it may have surprised Dr. Clark, the results of her findings should not be surprising to those who read my previous blog on vitamin D and infertility. In that blog, I mentioned that female rats mated to vitamin D-deficient males produced 73% fewer pregnancies. Nearly all tissues of the body contain vitamin D receptors (VDR). For the testes to function properly, those receptors must be stimulated by vitamin D.
For women who are having difficulties in conceiving, and for well their husbands who are probably vitamin D-deficient, this information is critically important. Pass it on!