Vitamins B6, C and E have been shown to help boost your immune system.
Vitamin E is a powerful antioxidant that helps the body fight off infection.
Effect of dietary protein and amino acids on immune function. ... Arginine has been demonstrated to be essential to the traumatized host and may have tissue-specific properties which influence components of the immune system. Thus, arginine may be of value in clinical situations where the immune system is compromised.