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Sperm not improved enough by Vitamin D - 50,000 IU weekly for 8 weeks - RCT Aug 2020

Evaluation of the effect of vitamin D3 supplementation on quantitative and qualitative parameters of spermograms and hormones in infertile men: A randomized controlled trial

Complementary Therapies in Medicine, Volume 53, September 2020, https://doi.org/10.1016/j.ctim.2020.102529
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VitaminDWiki

Details are in the PDF avaialable from Sci-hub.TW
Dosing was not quite statistically significant
Expect statistically signifiant if they had used any of the following

  • 50,000 every 5 days for 8 weeks
  • 100,000 every week for 6 weeks
  • 50,000 weekly for 12 weeks

Fertility and Sperm category contains the following summary

109 items in Fertility or Sperm in VitaminDWiki

See also

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Conception and vitamin D snapshot as of 2012

Vitamin D greatly improves Fertility

Increased male Vitamin D increases fertility


Background
25-Hydroxy Vitamin D3 is known to have an effect on reproductive system in both genders and may change the semen parameters in men.

Objective
Our study aimed to evaluate the effect of oral vitamin D3 supplementation on spermogram quantitative and qualitative parameters in infertile men.

Materials and Methods
This study was a triple-blind randomized controlled trial involving 62 infertile men with impaired spermatogonial tests. They were randomly divided into placebo and D3-supplemented groups. Spermograms and tests for LH (Luteinizing Hormone), FSH (Follicle Stimulating Hormone), TT (Total Testosterone), FT (Free Testosterone), SHBG (Sex Hormone Bonding Globulin), FAI (Free Androgen Index) and vitamin D3 levels were performed before and after the intervention.

Results
There were no significant differences between the two groups in parameters of the spermograms or serum levels of LH, FSH, TT, and FAI. In the intervention group, SHBG was significantly decreased after intervention (p = 0.01) and there was a significant increase in FT in the placebo group (p = 0.03).

Conclusion
The intake of vitamin D3 did not change the quality and quantity of spermograms and serum levels of LH, FSH, TT, and FAI but affected FT and SHBG. Further studies are still needed to clarify the biological role of vitamin D3 on fertility particularly on male fertility. This study lays a foundation for more extensive studies on male infertility.

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