The Role of Nutrition During the COVID-19 Pandemic: What We Know.

Background: Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) (COVID-19) infection provokes serious clinical consequences, which in many situations need hospitalization of the patient in Intensive Care Unit. Additionally, SARS-COV-2 infection can indirectly cause deaths in aged individuals as well as in patients with co-morbidities.
Objective: To evaluate the effects of nutrition during the COVID-19 pandemic in both hospitalized patients and the general population.
Methods: Authors searched Medline (PubMed), Web of Science, EMBASE, Cochrane Library, Google, and Institutional websites for medical subheadings terms and free full text referred to "SARS-CoV-2", COVID-19", "nutrition", "immune system", before 31st July 2020.
Results: A total of 20 articles describing different nutritional interventions for patients with SARS-- CoV-2 infection focusing on the general population have been included. Of these, 6 studies are dealing with nutritional interventions for patients with SARS-CoV2 infection. The others are focalized on a potential beneficial effect exerted by a Mediterranean diet (MD), related to the supplementation of micronutrients and vitamins.
Conclusion: A correct lifestyle, including the consumption of nutrients largely present in MD, may be beneficial for preventing or improving prognosis in the SARS-CoV-2 infection.
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