Adjuvant role and application prospects of immunonutrition in the comprehensive treatment of COVID-19

ABSTRACT

The world is in the grip of the COVID-19 caused by SARS-Cov-2 pandemic. Public health measures that can reduce the risk of infection and death in addition to quarantines are desperately needed. Malnutrition and various non-communicable underlying diseases, such as obesity, diabetes mellitus, cardiovascular diseases, leading to immunodeficiency in patients are important risk factors for severe COVID-19. Special nutrient supplement have pharmacological effect, stimulate the immune cells in a particular way, strengthen the function of immune response, maintain appropriate immune response, adjustment of cytokine production and release, reduce harmful or excessive inflammation, have positive sense to the prognosis of patients with COVID-19. This article reviewed the role of immune nutrients such as vitamins, mineral elements, polyunsaturated fatty acids, dietary fiber in reducing the risk of respiratory tract infections, as well as the current application of immunonutrition in COVID-19, in order to provide reliable reference for the adjuvant role of immunonutrition in the comprehensive treatment of COVID-19.