Broccoli
For the past 2000 years parents been fighting with their children to eat more broccoli. Why? Because everyone knows broccoli is good for you. It even looks like a small tree. Broccoli is a great source of the famous vitamin C. It also contains potent antioxidants, such as sulforaphane.
Broccoli and other cruciferous vegetables were proven to help boost immunity, according to the study. Researchers claim that sulforaphane turns on antioxidant genes and enzymes in specific immune cells, which combat free radicals in your body and prevent you from getting sick. To keep its nutrients, it’s best to steam it, steer-fry it. Any other method results in 30% loss of nutrients.