Association of vitamin D intake and serum levels with fertility: results from the Lifestyle and Fertility Study
Fertility and Sterility, Available online 16 June 2017
June L. Fung, Ph.D.a, , , Terryl J. Hartman, Ph.D.b, Rosemary L. Schleicher, Ph.D.c, Marlene B. Goldman, Sc.D.a, d
a Department of Obstetrics and Gynecology, Dartmouth-Hitchcock Medical Center and Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
b Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
c Division of Laboratory Sciences, National Center for Environmental Health, Centers for ,Disease Control and Prevention, Atlanta, Georgia
d Community and Family Medicine, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
If they had considered good male vitamin D levels there would have been about double the benefits
- Male fertility 4 X higher if high Vitamin D – Nov 2015
- Assisted Reproduction – 5 studies concluded vitamin D repletion helps – Review March 2015
- Pregnancy success increased 30 percent if sunny (or vitamin D) one month earlier – June 2015
- Infertility rate is 2X higher for blacks than whites (no mention of vitamin D, nor the man) – April 2014
Fertility and Sperm category contains
see also Overview Women and Vitamin D
Overview Pregnancy and vitamin D Fertility and Vitamin D – several articles
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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
Objective: To evaluate the role of vitamin D intake and serum levels on conception of clinical pregnancy and live birth.
Design: Prospective cohort study.
Setting: Academic medical centers.
Patient(s): Healthy, nulliparous women, age 18–39 years, and their male partners.
Main Outcome Measure(s): Clinical pregnancy and live birth were compared between those who did or did not meet the vitamin D estimated average requirement (EAR) intake (10 μg/d) and with serum 25-hydroxyvitamin D (25(OH)D) considered at risk for inadequacy or deficiency (<50 nmol/L) or sufficient (≥50 nmol/L).
Result(s): Among 132 women, 37.1% did not meet the vitamin D EAR and 13.9% had serum levels at risk for inadequacy or deficiency.
Clinical pregnancies were significantly higher among women who met the vitamin D EAR (67.5% vs. 49.0%) and with sufficient serum 25(OH)D (64.3% vs. 38.9%) compared with those who did not.
Live births were higher among those who met the vitamin D EAR (59.0% vs. 40.0%). The adjusted odds ratio (AOR) of conceiving a clinical pregnancy was significantly higher among those who met the EAR (AOR = 2.26; 95% confidence interval [CI], 1.05–4.86) and had sufficient serum 25(OH)D (AOR = 3.37; 95% CI, 1.06–10.70). The associations were not significant after controlling for selected nutrients and dietary quality.
Conclusion(s): Women with vitamin D intake below EAR and serum 25(OH)D levels at risk for inadequacy or deficiency may be less likely to conceive and might benefit from increased vitamin D intake to achieve adequacy.
Clinical Trial Registration Number: NCT00642590.
Available online 16 June 2017 https://doi.org/10.1016/j.fertnstert.2017.05.037 Purchase $35.95
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