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Obes Rev. 2015 Apr;16(4):341-9. doi: 10.1111/obr.12239. Epub 2015 Feb 17.

Obesity and vitamin D deficiency: a systematic review and meta-analysis.

Author information

1
Instituto de Sa├║de Coletiva, Federal University of Bahia, Salvador, Bahia, Brazil; School of Nutrition, Federal University of Bahia, Salvador, Bahia, Brazil.

Abstract

Over the past decade, there have been an increasing number of studies on the association between vitamin D deficiency and anthropometric state. However, we did not identify any meta-analyses of the relationship between obesity and vitamin D deficiency in different age groups. Thus, we evaluated the association between obesity and vitamin D deficiency. We searched for observational studies published up to April 2014 in PubMed/Medline, Web of Science and Scopus databases. We performed a meta-analysis in accordance with the random-effects model to obtain the summary measurement (prevalence ratio, PR). Among the 29,882 articles identified, 23 met the inclusion criteria. The prevalence of vitamin D deficiency was 35% higher in obese subjects compared to the eutrophic group (PR: 1.35; 95% CI: 1.21-1.50) and 24% higher than in the overweight group (PR: 1.24; 95% CI: 1.14-1.34). These results indicate that the prevalence of vitamin D deficiency was more elevated in obese subjects. The vitamin D deficiency was associated with obesity irrespective of age, latitude, cut-offs to define vitamin D deficiency and the Human Development Index of the study location.

KEYWORDS:

25-hydroxy vitamin D; meta-analysis; obesity; vitamin D deficiency

PMID:
25688659
DOI:
10.1111/obr.12239
[Indexed for MEDLINE]

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