3. Oysters
Zinc in large amounts can be found in oysters. This mineral has special properties that prevent the flu and fight viruses. This happens due to the fact that zinc takes part in activation and creation of white blood cells. You wounds will heal faster if your body has enough zinc.
4. Elderberry
This species has been used by people for centuries. It is valued for its special properties. First elderberries are rich in antioxidants. They are necessary to help you fight various types of inflammation. It has been proved that elderberry extract can prevent the flu and block the virus.