Abstract
A balanced diet combined with healthy lifestyle factors like adequate sleep ,low stress and exercise primes the body to fight infection and disease. Good nutrition supports the body throughout the life phases. The development of human body immune system is determined by the nutritional status. Nutrients are involved with the normal functioning of the immune system. Vitamin C, Vitamin D, Zinc, Selenium, Iron, and Protein have been identified as critical nutrients for the growth and function of immune cells.Deficit intake of one or more nutrients results in altered immune responses.This article highlights the importance of nutritional requirements to enhance the immune response. Key Words: Nutrition; Balanced diet; Infection; Immune system.