NFKB1 and COVID-19: Keeping the above facts in mind, it can be said that supplementation of adequate Mg in diet may play important roles in fight against COVID‐19 by supporting the immune system, suppressing the release of some proteins (NF‐κB, IL‐6, CRP, etc.), regulating renal potassium loss, and activating and enhancing the functionality of vitamin D (Wallace, 2020).