Green Tea:
Green tea is also a very famous food for fighting against infectious diseases. Green tea contains flavonoids, which is an antioxidant, and these flavonoids impart anti-inflammatory properties in the body, thus lowering the damage from infections. Flavonoids boost the immune system in the human body and dramatically prevents the occurrence of infections. Another potent ingredient in green tea is catechin, which is also an antioxidant, and it acts as a powerful agent against bacteria and viruses. The people who drink green tea on a regular basis are less prone to the attack of the influenza virus and the cold-causing bacteria.