Comment on “optimal nutritional status for a well-functioning immune system is an important factor to protect against viral infections. Nutrients 2020, 12, 1181”

The novel coronavirus (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has engulfed the world since December 2019. Since then, many studies have focused on the impact that lifestyle and dietary intake of nutrients have on immune system and respiratory tract infections. The supplementation of several nutrients, including omega-3 polyunsaturated fatty acids (n-3 PUFA), such as eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids,has recently been proposed as a support towards optimal immune function[1]. The authors of the aforementioned article proposed a daily intake of 250 mg EPA and DHA, based on recommendations for optimal immune function, according to global, regional and national guideline