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News - Vitamin D may be important for sperm quality

By Nutri People

According to a new study from researchers at the University of Copenhagen and Copenhagen University Hospital, vitamin D could play a key role in improving male reproductive health, especially sperm quality.

It’s been known for a while now that human sperm carry a vitamin D receptor and that vitamin D deficiency results in low sperm number and motility in animals, but until recently the effects of vitamin D deficiency on human sperm quality hadn’t been confirmed.

In this new study, the scientists measured the vitamin D levels and sperm quality of 300 healthy men as well as testing the effects of vitamin D on sperm in the lab. In the lab study, vitamin D was found to increase sperm motility and induced the acrosome reaction, which is vital for the sperm to be able to penetrate an egg. In the human part of the study the researchers found men with healthy levels of vitamin D had significantly higher sperm motility and more normally-formed sperm compared with men who were vitamin D deficient.

As this research is still in the early stage, the scientists are now calling for controlled trials to determine whether vitamin D supplements could be beneficial for infertile men. 

Article References

Ref Blomberg Jensen M et al. Vitamin D is positively associated with sperm motility and increases intracellular calcium in human spermatozoa. Hum Reprod. 2011 Jun;26(6):1307-17.

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