Here's a great little list of foods that are very rich in vitamin C! There are a ton of foods out there that are good balanced source of this vitamin. So technically, you don't really need to take any vitamin supplements in order to boost up the body's immune system: because now you know some of the foods to get the job done!
And without any more delay, here is the list!
Enjoy!
~Strawberries
~Raspberries
~Blueberries
~Oranges
~Chili Peppers
~Broccoli
~Camu Camu
~Grapefruits
~Blackberries
~Kiwi
~Collard Greens
~Yams
~Avocado
~Pineapple
~Mango
~Papaya
~Cabbage
~Watermelon