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Pechlivanidou E, Vlachakis D, Tsarouhas K, Panidis D, Tsitsimpikou C, Darviri C, Kouretas D, Bacopoulou F. The prognostic role of micronutrient status and supplements in COVID-19 outcomes: A systematic review. Food Chem Toxicol 2022; 162:112901. [PMID: 35227861 PMCID: PMC8873042 DOI: 10.1016/j.fct.2022.112901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 12/23/2022]
Abstract
Micronutrients constitute an adjuvant treatment for respiratory viral infections. Since there is no effective antiviral therapy for COVID-19 yet, adjuvant intervention for the survival of critically ill patients may be significant. Search of the PubMed, CINAHL and Cochrane databases was carried out to find human studies investigating the prognostic role of micronutrient status and the effects of micronutrient supplementation intervention in COVID-19 outcomes of adult patients. Patients with certain comorbidities (diabetes mellitus type 2, obesity, renal failure, liver dysfunction etc.) or pregnant women were excluded. 31 studies (27 observational studies and 4 clinical trials) spanning the years 2020-2021, pertaining to 8624 COVID-19 patients (mean age±SD, 61 ± 9 years) were included in this systematic review. Few studies provided direct evidence on the association of serum levels of vitamin D, calcium, zinc, magnesium, phosphorus and selenium to patients' survival or death. Vitamin D and calcium were the most studied micronutrients and those with a probable promising favorable impact on patients. This review highlights the importance of a balanced nutritional status for a favorable outcome in COVID-19. Micronutrients' deficiency on admission to hospital seems to be related to a high risk for ICU admission, intubation and even death. Nevertheless, evidence for intervention remains unclear.
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Affiliation(s)
- Evmorfia Pechlivanidou
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, 11527, Greece
| | - Dimitrios Vlachakis
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, 11855, Greece
| | - Konstantinos Tsarouhas
- Department of Cardiology, University Hospital of Larissa, Mezourlo, Larissa, 41110, Greece
| | | | | | - Christina Darviri
- Postgraduate Program "The Science of Stress and Health Promotion", School of Medicine, National and Kapodistrian University of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece
| | - Dimitrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Flora Bacopoulou
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, 11527, Greece; Postgraduate Program "The Science of Stress and Health Promotion", School of Medicine, National and Kapodistrian University of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece.
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