Antioixdants are essential for proper function of the immune system. This is partly because immune cells produce free-radicals for normal defense functions. If the level of free radicals in the immune cells surpasses the normal level, then they negatively affect the immune system.
On the other hand, antioxidants act as scavengers of the free radicals and promote our immunity. Imbalance between free radicals and antioxidants in cells, due to deficiency in single or multiple antioxidants has been reported to result in weakness of immunity function.
Antioxidants boost the immunity system also by playing other important roles in cellular metabolism, signal transduction, gene activation, and transcription.