Vitamin C is an important nutrient. We can find it in fruits and vegetables. Vitamin C helps our body in countless ways. But, the most important thing is that it keeps our body strong. The human body makes things called free radicals. Our body makes them when it is under stress. Free radicals can cause a lot of terrible diseases. However, vitamin C can help to destroy free radicals. In this way, vitamin C can help our body fight heart disease and cancer.