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The association between B vitamins and the risk of COVID-19

Darand et al., British Journal of Nutrition, doi:10.1017/S0007114522003075
Nov 2022  
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Retrospective 9,189 adults showing no significant relationship between vitamin B9 intake and COVID-19 cases.
Darand et al., 9 Nov 2022, retrospective, Iran, peer-reviewed, 6 authors.
This PaperVitamin B9All
DOI record: { "DOI": "10.1017/s0007114522003075", "ISSN": [ "0007-1145", "1475-2662" ], "URL": "http://dx.doi.org/10.1017/S0007114522003075", "abstract": "<jats:title>Abstract</jats:title>\n\t <jats:p>The fast spread of the coronavirus disease 2019 (COVID-19) epidemic and its high mortality were quickly noticed by the health community. B vitamins are essential micronutrients for the body with antioxidant, anti-inflammatory and immune-regulating properties. The present study can provide a comprehensive picture of the associations between B vitamins and COVID-19 incidence. This study was undertaken on 9189 adult participants of the Yazd Health Study (YaHS) and Taghzieh Mardom-e-Yazd (TAMIZ) study aged 20 to 69 years. Data on dietary intakes were obtained using a validated FFQ. Multivariable logistic regression analysis was used to evaluate the association between B vitamins and COVID-19. Our findings indicated that participants in the fourth quartile of vitamin B<jats:sub>5</jats:sub> intake compared with the first quartile had a protective effect against COVID-19 (OR: 0·53, 95 % CI 0·28, 0·99, <jats:italic>P</jats:italic>-trend = 0·02) after adjustment for all possible confounds in model 3. In addition, participants in the third quartile of vitamin B<jats:sub>12</jats:sub> intake compared with the first quartile (OR: 0·63, 95 % CI 0·40, 0·98, <jats:italic>P</jats:italic>-trend = 0·11) had fewer odds of COVID-19 after full adjustments for confounders. Our findings indicated no significant relationship between dietary intake of vitamin B<jats:sub>1</jats:sub>, B<jats:sub>2</jats:sub>, B<jats:sub>3</jats:sub>, B<jats:sub>9</jats:sub> and B-complex and COVID-19. A higher intake of vitamin B<jats:sub>5</jats:sub> could reduce the odds of COVID-19 by 47 %, and a moderate intake of vitamin B<jats:sub>12</jats:sub> had a protective effect on COVID-19. Although our study has promising results, stronger clinical studies are needed.</jats:p>", "alternative-id": [ "S0007114522003075" ], "assertion": [ { "group": { "label": "Copyright and Licensing", "name": "copyright_and_licensing" }, "label": "Copyright", "name": "copyright", "value": "© The Author(s), 2022. 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