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Fertility and sperm

Did you know?
  • Conception is much more successful if BOTH female and male
    have adequate amount of vitamin D (> 30 ng)
  • Testosterone levels are proportional to vitamin D levels - up to about 50 ng
  • Infertility is higher in groups with low vitamin D - such as people with dark skins
          (More Fertility/Sperm info below)

Learn how Vitamin D is essential for good health
  Watch a 5 minute video "Does Less Sun Mean more Disease?"
  Browse for other Health Problems and D in left column or here
  see also Supplementing and More in the menu at the top of very page

81 items in Fertility or Sperm in VitaminDWiki

see also Overview Women and Vitamin D
Overview Pregnancy and vitamin D    Fertility and Vitamin D – several articles
Search VitaminDWiki for IVF OR "IN VITRO FERTILIZATION" 247 items as of Oct 2017
Search VitaminDWiki fore Testosterone 472 items as of Oct 2017
Search VitaminDWiki for "Assisted reproduction" 89 items as of Oct 2017
Search VitaminDWiki for "erectile dysfunction" 57 items as of Oct 2017
Conception and vitamin D snapshot as of 2012

Most visited 10 pages in Fertility and Sperm

Id Page Hits Last modification Creator Categories
1723 Hypothesis – Fatigue the day after sex is due to deficiency of Vitamin D, Magnesium, and Zinc 104520
10 Oct, 2016 13:33
admin Vitamin D and Magnesium
Fertility and sperm
816 Overview Pregnancy and vitamin D 76211
07 Aug, 2017 20:48
admin Pregnancy
Fertility and sperm
High Risk
3440 Fertility and sperm 37867
15 Feb, 2018 11:50
ricks99 Fertility and sperm
2143 Overview Women and Vitamin D 30947
19 Jan, 2017 22:15
admin Pregnancy
Fertility and sperm
581 Better sperm if have higher level of vitamin D 18671
23 Sep, 2010 02:53
admin Fertility and sperm
2660 How 60 ng of vitamin D enabled pregnancy - a personal story 16308
09 Dec, 2016 20:50
admin Pregnancy
Fertility and sperm
2666 Vitamin D and fertility: a systematic review – May 2012 14107
14 Mar, 2016 18:58
admin Fertility and sperm
3266 Semen worse when vitamin D lower than 20 or higher than 50 ng – Oct 2012 12274
16 Oct, 2014 16:59
admin Fertility and sperm
3003 Fertility problem (PCOS) reduced by vitamin D: many studies 10740
27 Jun, 2017 14:18
admin Fertility and sperm
2144 Vitamin D - roles in women's reproductive health - Nov 2011 7937
17 Jul, 2016 17:32
admin Fertility and sperm
Top news

Items in both of the categories Intervention AND Fertility/Sperm

Infertile Couples 3 Times More Likely to Divorce 2014

Nothing about vitamin D

Vitamin D: Study Finds Impaired Fertility May 2016

RCT of Vitamin D and Fertility - daily for a year - to 16 weeks after birth
This data disagrees with a majority of studies on this page

Became pregnantComplications
Placebo 38%52%
1400 IU33%23% for 1400 and 2800 IU
2800 IU39%

Statistical certainty of the percentages was not given in the abstract

  • "Complications during labor, including preeclampsia and postpartum bleeding, were significantly more frequent in the placebo group compared with the combined treatment groups (52% versus 23%, P=0.005)."
  • "The study found no difference in other complications including pre-term birth, miscarriage, gestational diabetes, and infections"
  • No comment on any differences in Still Births, Death during first year, etc.
  • Wonder if mothers getting lots of vitamin D had more alive and healthy children at the one year mark compared to placebo


Clinical trial of 50,000 IU vitamin D weekly to improve IVF success - Phase 4 trial announced July 2017

Vitamin D Supplementation in Vitamin Deficient Women Undergoing IVF Cycles: Does it Affect the Fertility Outcome?
Unfortunately trial is only giving vitamin D to the women, and for only 2 months
They will be measuring results over the next 12 months
Doubt that this clinical trial will be successful
50,000 IU bi-weekly to both man and woman during an entire year would have had far better success.

50% reduction in sperm count around the world in just 40 years - Aug 2017

Skyrocketing Male Infertility May Threaten Mankind’s Survival - Mercola

  • "According to the largest meta-analysis of its kind, sperm counts around the world declined by more than 50 percent, to 47 million sperm per mL, between 1973 and 2013, and continue to dwindle"
  • "The most significant declines were found in samples from men in North America, Europe, Australia and New Zealand, where many had sperm concentrations below 40 million/mL — a level at which a man will have trouble fertilizing an egg"
    Vitamin D was barely mentioned

Fertility and sperm        

37884 visitors, last modified 15 Feb, 2018, URL:

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