Better sperm associated with higher vitamin D (again) – April 2022

The association of vitamin D, semen parameters, and reproductive hormones with male infertility: A cross-sectional study.
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The association of vitamin D, semen parameters, and reproductive hormones with male infertility: A cross-sectional study.

IJRM. 2022; 20 (4) :331-338 IJRM 2022, 20(4): 331-338 ‎ 10.18502/ijrm.v20i4.10905
Leila Maghsoumi-Norouzabad 1, Maryam Labibzadeh2 , Ahmad Zare Javid3 , Seyed Ahmad Hosseini4 , Gholam Abbas Kaydani5 , Maryam Dastoorpur6
1- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. , l.maghsumi55@gmail.com
2- Center of Therapy and Research Infertility Jahad Daneshgahi, Ahvaz, Iran.
3- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
4- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
5- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
6- Department of Biostatistics and Epidemiology, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Background: The prevalence of vitamin D deficiency and male infertility is high in Iran.

Objective: The present research aimed to examine the association between serum vitamin D [{DIV(class="lefth4")}
25(OH)D], parameters of semen including semen volume, sperm count, motility and morphology, and reproductive hormones in infertile Iranian men.

Materials and Methods: This was a cross-sectional study on 119 infertile men conducted between September 2018 and May 2019. Subjects were divided into 3 groups based on serum vitamin D levels: deficient (< 10 ng/mL), insufficient (10 ng/mL ≤ 25(OH)D ≤ 30 ng/mL), and sufficient (> 30 ng/mL). Body mass index and waist circumference were measured. 25(OH)D, testosterone, sex hormone-binding globulin, luteinizing hormone (LH), follicle-stimulating hormone and estradiol levels, and semen parameters were assessed.

Results: The semen volume, sperm counts, total and progressively motile sperm, normal sperm morphology, testosterone levels, and testosterone/estradiol ratio were substantially higher in the sufficient group compared to the other groups (p < 0.001). Also, in the sufficient group, serum LH (p < 0.001) and estradiol (p < 0.001, p = 0.01) were notably lower and serum sex hormone-binding globulin (p < 0.001) and the testosterone/LH ratio (p < 0.001) were considerably higher compared to the insufficient and deficient groups.

Conclusion: Our study showed a positive relationship between serum vitamin D levels, and seminal parameters and sex hormones in Iranian infertile males.
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VitaminDWiki - Far better sperm in fertility clinic if more than 30 ng of Vitamin D - June 2022

VitaminDWiki - 7 studies in both categories Fertility-Sperm and Vitamin D Receptor

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VitaminDWiki pages with IVF or IN VITRO FERTILIZATION in title (13 as of July 2022)

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Items found: 14

Title		Modified
In vitro fertilization and Vitamin D – many studies		19 Apr, 2024
In vitro fertilization is more successful when vitamin D in ovaries, not just blood, is increased – April 2022		27 Apr, 2022
Vitamin D levels in cells, not blood, is important (IVF follicular fluid in this case) – Aug 2021		27 Apr, 2022
In vitro fertilization NOT helped by 600,000 IU of vitamin D – RCT Sept 2021		30 Jan, 2022
IVF 4X more successful for white women with lots of vitamin D – many studies		17 Dec, 2021
In Vitro Fertilization clinical trial using 50,000 IU of Vitamin D bi-weekly – Dec 2024		14 Sep, 2020
Live birth 1.7 X more likely after IVF if good level of vitamin D – meta-analysis Aug 2020		15 Aug, 2020
In-vitro Fertilization costs at least 10,000 dollars, Vitamin D costs 5 dollars		02 Oct, 2019
Poor ovarian response (poor IVF) associated with low vitamin D – Sept 2019		28 Sep, 2019
IVF 60 percent more successful if woman had sufficient vitamin D – Dec 2017		29 Dec, 2017
IVF 50 percent more likely to result in pregnancy if high vitamin D – meta-analysis Nov 2017		20 Nov, 2017
In vitro fertilization not helped by vitamin D if ignore high levels and male levels – meta Mar 2016		14 Jan, 2017
In Vitro Fertilization (D5 SET ICSI) 40 percent more successful if high vitamin D – Sept 2014		15 Aug, 2014
Clinical Trial vitamin D levels and IVF success – May 2011		13 Aug, 2014

7 studies in both of the categories Intervention AND Fertility/Sperm