期刊
BRITISH JOURNAL OF NUTRITION
卷 125, 期 8, 页码 851-862出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114520003311
关键词
Malnutrition; Obesity; Ultra-processed foods; COVID-19; Inflammation
The relationship between dietary habits, nutritional status, and immune response is crucial in combating COVID-19, with malnutrition suppressing the immune system and increasing susceptibility to infections, while obesity promotes inflammation and lowers immune response to the virus. Maintaining a healthy and balanced diet with micronutrients, bioactive compounds, and probiotics can help enhance the immune response to viral infections like COVID-19.
COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was recognised by the WHO as a pandemic in 2020. Host preparation to combat the virus is an important strategy to avoid COVID-19 severity. Thus, the relationship between eating habits, nutritional status and their effects on the immune response and further implications in viral respiratory infections is an important topic discussed in this review. Malnutrition causes the most diverse alterations in the immune system, suppressing of the immune response and increasing the susceptibility to infections such as SARS-CoV-2. On the other hand, obesity induces low-grade chronic inflammation caused by excess adiposity, which increases angiotensin-converting enzyme 2. It decreases the immune response favouring SARS-CoV-2 virulence and promoting respiratory distress syndrome. The present review highlights the importance of food choices considering their inflammatory effects, consequently increasing the viral susceptibility observed in malnutrition and obesity. Healthy eating habits, micronutrients, bioactive compounds and probiotics are strategies for COVID-19 prevention. Therefore, a diversified and balanced diet can contribute to the improvement of the immune response to viral infections such as COVID-19.
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