22 Superfoods To Keep Your Immune System Fighting Fit 👈 Begin here.
'Fine tuna' your immune system
Tuna is a protein-rich in the antioxidant selenium, which many people have in short supply in their diet. Studies have shown that a deficiency of this trace mineral may increase the severity of a flu virus. Research also suggests that selenium lowers the risk of heart disease, reduces the symptoms of asthma, and boosts immunity in general.
