*[[Zinc]] is necessary for a healthy immune system.
* botanicals like [[astragalus]] and [[echinacea]] may boost your immune defense against [[bronchitis]]-causing viruses.
* [[Licorice]] : There are two compounds in licorice, glycyrrhizin and glycyrrhetinic acid, which research has shown to elevate the levels of interferon in the body. This helps to keep the replication of viruses and other pathogens in check
* Fish : Omega-3 is beneficial in controlling the inflammatory processes and strengthens the integrity of the cells and its functions. Additionally, fish, such as the shellfish contains huge amount of [[selenium]] that increases the production of cytokines by the white blood cells that can assist in fighting the virus in the body.
* sweet potatoes can provide vitamin A, beta-carotene and in anthocyanin.