A viral disease due to a coronavirus was reported in a famous city of China, Wuhan, and spread in to all over the world which rapidly changing into an exploding pandemic and posing a severe threat to human health all over the world.   There are not sufficient treatment options for the management of this global disease, and a shortage of vaccines. Important aspects that help to defeat coronavirus infection seem to be having a healthy, strong, and resilient immune system. Nutrition and metabolic disorders, such as obesity, cardiovascular disease and diabetes, play an important role in the community health condition in general and especially during this new pandemic. There seems to be a vast impact of lifestyle, metabolic disorders, and immune status on coronavirus disease 2019 (COVID-19). For this reason, it is important to consider the impact of lifestyle and the consumption of well-defined healthy diets during the pandemic.

In this review, we summarise recent findings on the effect of nutrition on COVID-19 susceptibility and disease severity and treatment. Understanding how specific dietary features might help improve public health strategies to reduce the rate and severity of COVID-19.