5 Foods That Boost Immunity

Citrus fruits

Vitamin C contributes in increasing the production of white blood cells. The key cells to fighting infections
Because your body doesn't produce or store it, daily intake of vitamin C is essential for consistent good health
Fruits rich in vitamin C are oranges, lemon, amla, strawberries, kiwis, papaya

Yogurt

When selecting yogurt, look for ones that have "live and active cultures" printed on the label. According to the American Journal of Clinical Nutrition, these cultures can stimulate your immune system to help fight diseases.