The effects of Vitamin D3 supplementation on Spermatogram and endocrine factors in asthenozoospermia infertile men: A randomized, triple blind, placebo-controlled clinical trial
Open accessAbstract
Objective: Evaluate the effects of vitamin D3 (VD3) on sperm parameters and endocrine markers in infertile men with asthenozoospermia. Materials and methods: This randomized, triple-masking, placebo-controlled clinical trial conducted on 86 asthenozoospermia infertile men with serum 25 hydroxy vitamin D3 (25(OH)VD3)< 30 ng/ml in the infertility clinic of Ahvaz Jahad daneshgahi, Iran.Patients were randomly allocated to groups A and B, who received daily 4000 IU VD3 and matching placebo respectively for 3 months. Demographic data, dietary intake, physical activity, sun exposure, anthropometric indices, serum 25(OH)VD3, luteinizing hormone (LH), follicle-stimulating hormone (FSH), total testosterone (T), estradiol (E2),, sex hormone-binding globulin (SHBG), free androgen index (FAI = T/SHBG. 100), T/LH and T/E2 ratios, prolactin (PRO), parathyroid hormone (PTH), osteocalcin (OCN), phosphorus and sperm parameters were assessed. Results: Three months VD3 supplementation with 4000 IU/day had no significant effects body weight, body mass index (BMI), waist circumference (WC), body fat (BF), serum, OCN, LH, FSH, T, E2, SHBG, PRO, T/E2 ratio, FAI, semen volume, sperm count and normal sperm morphology.It increases serum 25(OH)VD3, PTH and phosphorus and seminal and serum calcium, T/LH ratio and total and progressive sperm motility and decreased significantly compared to the baseline and placebo group. Conclusion: VD3 supplementation may affect sperm motility in men with asthenozoospermia and serum 25(OH)VD3 < 30 ng/ml. Trial registration: Iran Clinical Trials Registry, ID: IRCT20151128025274N4, registered on 28 March 2018, URL of trial registry record:https://www.irct.ir/trial/29983
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The low-risk comparison was Maghsoumi-Norouzabad 2021.
“The low-risk comparison was Maghsoumi-Norouzabad 2021 [28].”
From Vitamin D Supplementation, Total Testosterone, and Androgen Bioavailability Markers in Adult Men: A Systematic Review and Meta-Analysis of Randomized Controlled Trials (2026) · cites this paper as [28]
The Materials and methods section (Randomization and blinding and interventions; page unavailable) identifies this as a vitamin D3-versus-placebo comparison and describes computer-generated randomization and masking intended to reduce bias. The paper does not itself classify the comparison as “low-risk,” so that assessment is not established by this source. (LLM, conf=0.82)
Experimental — accuracy not yet measuredThe 11 included total-testosterone comparisons were drawn from Gheflati et al., Maghsoumi-Norouzabad et al., Zittermann et al., Pilz et al., Saha et al., Ulrich et al., Rips et al., Mielgo-Ayuso et al., Michalczyk et al., and Ramezani Ahmadi et al.
“The 11 included total-testosterone comparisons were drawn from Gheflati et al. [27], Maghsoumi-Norouzabad et al. [28], Zittermann et al. [31], Pilz et al. [17], Saha et al. [20], Ulrich et al. [21], Rips et al. [22], Mielgo-Ayuso et al. [23], Michalczyk et al. [24], and Ramezani Ahmadi et al. [25].”
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Cites
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Effect of Vitamin D Supplementation on Testosterone Levels in Men
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“[28] in their randomized clinical trial studied the effects of an initial oral dose of 300,000 IU of cholecalciferol, followed by a 150-day supplementation with 1400 IU of cholecalciferol and 500 mg of calcium or placebo in infertile men.”
BackgroundCanguven, O., Talib, R. A., El Ansari, W., Yassin, D.-J., & Al Naimi, A. (2017) · The Aging Male · doi:10.1080/13685538.2016.1271783 · Cited by 112 · cited 1× · see citing works
“While, the long supplementation (12 months) with VD2 and VD3 in different-age men groups significantly increased serum total T [98], free T, and SHBG [99].”
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Cited by
Sorted by citations
Simpson, S., & Pal, L. (2023) · Current Opinion in Obstetrics & Gynecology · doi:10.1097/gco.0000000000000887 · Cited by 13 · see citing works
A systematic appraisal of emerging alternative therapies in men’s health and wellness
Qaoud, Y., Morcos, M., Macdonald, M., Shoeib, A., Qureshi, Y., Mak, M., Ross, A., Vigil, H., & Witherspoon, L. (2025) · Canadian Urological Association Journal · doi:10.5489/cuaj.9368 · Cited by 1 · see citing works
Paez-Allendes, L., Valenzuela-Fuenzalida, J. J., Moya, M. P., Oyanedel, G., Cifuentes-Suazo, G., Figueroa-Puig, J., Orellana-Donoso, M., Mateluna-Valls, E., Cabezas-Salgado, J. J., Sanchis-Gimeno, J., et al. (2026) · Nutrients · doi:10.3390/nu18132090
- Authors
- Maghsoumi-Norouzabad, L., Zare Javid, A., Mansoori, A., Dadfar, M., & Serajian, A.
- Affiliations
- Ahvaz Jundishapur University of Medical Sciences (IR)
- Venue
- Reproductive Biology and Endocrinology
- Published
- 2021-07-05
- Volume
- 19
- Issue
- 1
- Pages
- 102-102
- ISSN
- 1477-7827 (ISSN-L)
- PMC
- PMC8256550
- OpenAlex
- W3179395765
- Cited by
- 48
- References
- 8
- Citations by year
- 2026: 8 · 2025: 7 · 2024: 10 · 2023: 16 · 2022: 7
- FWCI
- 6.92
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Reproductive Biology and Endocrinology (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Ahvaz Jundishapur University of Medical Sciences
- Topics
- Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
- Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
- Health Sciences › Health Professions › General Health Professions › Male Reproductive Health Studies
- Keywords
- vitamin D3 supplementation, asthenozoospermia, male infertility, sperm motility, 25-hydroxyvitamin D3, luteinizing hormone, follicle-stimulating hormone, testosterone, sex hormone-binding globulin, free androgen index, parathyroid hormone, osteocalcin, phosphorus, seminal parameters
- MeSH terms
- Adult, Cholecalciferol, Double-Blind Method, Follow-Up Studies, Humans, Infertility, Male, Luteinizing Hormone, Male, Parathyroid Hormone, Semen, Sperm Motility, Testosterone, Treatment Outcome, Dietary Supplements, Asthenozoospermia
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