Ten major foods to boost our immunity include eating citrus foods like orange, lemon, amla and kiwi. Broccoli, spinach, red Pepper (Shimla mirch), and other green leafy vegetables increase our immunity. A combination of apple cider vinegar, garlic, ginger, honey and lemon is also a very good way to increase immunity,” Chhajer told.

Probiotics like curd or yogurt taken at room temperature helps increase immunity.

Any fruit/vegetables, especially red ones like papaya, carrot and beet also provide Vitamin A to boost immunity.

“Green tea, tulsi and cinnamon drinks are also healthy as far as immunity is concerned. Turmeric or haldi extract has the ability to boost immunity. Black grapes has very high antioxidants and, thus, good for immunity,”

I made another verification on why we need to eat more of alkaline food to help boost our immunity.