Cited by 51Vitamin D Research StudiesSports Performance and TrainingExercise and Physiological Responses

Effects of vitamin D3 supplementation on serum 25(OH)D concentration and strength in athletes: a systematic review and meta-analysis of randomized controlled trials

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Han, Qi, Li, Xueyang, Tan, Qiushi, Shao, Jing, Yi, Muqing·2019·Journal of the International Society of Sports Nutrition

Abstract

BACKGROUND: The purpose of this systematic review and meta-analysis is to investigate the effects of vitamin D3 supplementation on skeletal muscle strength in athletes. Vitamin D3 supplements or vitamin D3 fortified foods always have claims for bringing people health benefits including bone and muscle health. An up-to-date rigorous systematic review and meta-analysis is important to better understand the effect of vitamin D3 supplementation on muscle strength. METHODS: English written randomized controlled trials (RCTs) that looked at effects of vitamin D3 supplementation on muscle strength in healthy athletes were searched using three databases (PubMed, Embase and Cochrane Library). Serum 25(OH)D above 30 ng/mL is considered to be sufficient in this systematic review and meta-analysis. RESULTS: Five RCTs with 163 athletes (vitamin D3 n = 86, placebo n = 77) met inclusion criteria. Fourteen athletes were lost to follow-up and 149 athletes (vitamin D3 n = 80, placebo n = 69) were documented with complete result. Among athletes with baseline serum 25(OH)D values suggesting insufficiency, vitamin D3 daily dosage at 5000 IU for over 4 weeks led to a serum 25(OH)D concentration of 31.7 ng/mL. Athletes with sufficient serum 25(OH)D level at baseline were recruited in only one study, and the participants of which were assigned to either vitamin D3 at a daily dosage of 3570 IU or placebo for 12 weeks, their serum 25(OH)D sufficiency (VD: 37.2 ± 7.6 vs. 45.6 ± 7.6; PL: 38 ± 6.8 vs. 32 ± 8.4) was well maintained above the cut-off boundary. One repetition maximum Bench Press (1-RM BP) was not improved significantly (SMD 0.07, 95% CI: - 0.32 to 0.47, P = 0.72) and there was no significant increase in maximal quadriceps contraction (SMD -2.14, 95% CI: - 4.87 to 0.59, P = 0.12). Furthermore, there was no significant overall effect of vitamin D3 intervention on muscle strength in this meta-analysis (SMD -0.75, 95% CI: - 1.82 to 0.32, P = 0.17). CONCLUSION: Although, serum 25(OH)D concentrations after supplementation reached sufficiency was observed, muscle strength did not significantly improve at this point of current meta-analysis. Additional well-designed RCTs with large number of participants examined for the effect of vitamin D3 supplementation on serum 25(OH)D concentrations, muscle strength in a variety of sports, latitudes and diverse multicultural populations are needed.

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  • In vitamin D deficient athletes, oral supplementation restores serum 25(OH)D concentrations and consequently improves various aspects of muscle performance.

    “In vitamin D deficient athletes, oral supplementation restores serum 25(OH)D concentrations [294,295] and, consequently, improves various aspects of muscle performance [296].”

    From Nutritional Considerations for the Vegan Athlete (2023) · cites this paper as [295]

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  1. [26]Review Manager (RevMan) [Computer program]. Version 5.3. Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboration, 2014.

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Authors
Han, Q., Li, X., Tan, Q., Shao, J., & Yi, M.
Affiliations
  • Beijing Sport University (CN)
  • Institute of Scientific and Technical Information of China (CN)
  • National Research Institute of Sports Medicine Beijing China
Corresponding author
Han, Qi
Venue
Journal of the International Society of Sports Nutrition
Published
2019-01-15
Volume
16
Issue
1
Pages
55-55
ISSN
1550-2783 (ISSN-L)
OpenAlex
W2989563654
Cited by
47
References
62
Citations by year
2026: 5 · 2025: 3 · 2024: 8 · 2023: 9 · 2022: 9 · 2021: 5 · 2020: 8
FWCI
0.82
Type
journal article
Language
en
Open access
Locations
  • Journal of the International Society of Sports Nutrition (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Key Projects in the National Science and Technology Program during the Thirteen Five-year Plan Period (2016YFD0400603)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
vitamin D3 supplementation, athletes, skeletal muscle strength, serum 25-hydroxyvitamin D, vitamin D insufficiency, one-repetition maximum, bench press, quadriceps contraction, vitamin D status, exercise performance, dose-response relationship, vitamin D toxicity
MeSH terms
Cholecalciferol, Humans, Vitamin D, Vitamins, Randomized Controlled Trials as Topic, Muscle, Skeletal, Dietary Supplements, Muscle Strength, Sports Nutritional Physiological Phenomena

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