Evidence map›Paper›PMID 26538075›Full record

SynthesisEuropean journal of nutrition2016

The effect of vitamin D supplementation on selected inflammatory biomarkers in obese and overweight subjects: a systematic review with meta-analysis.

Małgorzata Jamka, Małgorzata Woźniewicz, Jarosław Walkowiak, Paweł Bogdański, Jan Jeszka, Marta Stelmach-Mardas

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European journal of nutrition, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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  15. Palmitoylethanolamide in Human and Animal Obesity.Molecules (Basel, Switzerland) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Małgorzata JamkaDepartment of Human Nutrition and Hygiene, Poznan University of Life Sciences, 31 Wojska Polskiego Str., 60-624, Poznan, Poland.
Małgorzata WoźniewiczDepartment of Human Nutrition and Hygiene, Poznan University of Life Sciences, 31 Wojska Polskiego Str., 60-624, Poznan, Poland.
Jarosław WalkowiakDepartment of Paediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, 27/33 Szpitalna Str., 60-572, Poznan, Poland.
Paweł BogdańskiDepartment of Education and Obesity Treatment and Metabolic Disorders, Poznan University of Medical Sciences, 84 Szamarzewskiego Str., 60-596, Poznan, Poland.
Jan JeszkaDepartment of Human Nutrition and Hygiene, Poznan University of Life Sciences, 31 Wojska Polskiego Str., 60-624, Poznan, Poland.
Marta Stelmach-MardasDepartment of Paediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, 27/33 Szpitalna Str., 60-572, Poznan, Poland. stelmach@dife.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe objective of this systematic review was to assess the effect of vitamin D supplementation on selected inflammatory biomarkers in obese and overweight subjects.

methodsThe search process was based on the selection of publications (DB-RCT and RCT) listed in the following databases: PubMed, Web of Knowledge, Scopus, the Cochrane Library and Embase. To assess the study quality, a nine-point scoring system according to the Newcastle-Ottawa scale was used, and a high-quality study was defined by a threshold of ≥7 points. Thirteen randomized controlled trials were included. The analysed population consisted of 1955 overweight and obese subjects. The mean age ranged from 13.6 to 71.7 years. Changes in the concentration of 25-hydroxycholecalciferol (25(OH)D), C-reactive protein (CRP), tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) were assessed. To combine individual study results, a meta-analysis was performed.

resultsThe baseline levels of 25(OH)D suggested vitamin D deficiency or insufficiency in the analysed population. The vitamin D supplementation did not influence on CRP (std. mean differences -0.11; 95 % CI -0.27-0.04; p = 0.15), TNF-α (std. mean differences -0.13; 95 % CI -0.38-0.12; p = 0.31) and IL-6 concentrations (std. mean differences 0.1; 95 % CI -0.43-0.63; p = 0.71).

conclusionsThis meta-analysis suggests that supplementation with vitamin D does not have a significant influence on changes in the concentration of selected inflammatory biomarkers in the obese and overweight subjects.

Indexed as

Dietary SupplementsAdolescentAdultAgedBiomarkersC-Reactive ProteinDatabases, FactualHumansInterleukin-6Middle AgedObesityOverweightRandomized Controlled Trials as TopicTumor Necrosis Factor-alphaVitamin DVitamin D DeficiencyBiomarkersC-Reactive ProteinInterleukin-6Tumor Necrosis Factor-alphaVitamin DAdipokinesC-reactive proteinCytokinesDietary supplementsObesityVitamin D

Identifiers

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.