Take These 12 Foods High in Vitamin C to Boost Your Immune System

4. Guava

 Just a piece of guava will give you more than two days’ worth of vitamin C, at 250 mg. this exotic fruit also has different nutrients such as folic acid, potassium, manganese and fiber. Even if you do not grow guavas locally, they can be found in supermarkets. They are being imported from countries that grown them.

5. Bell Pepper

Beta carotene is another nutrient found in bell peppers, aside from the trusty vitamin C. 140 mg of vitamin C is present in one cup of raw bell peppers. That is more than the required daily intake. You can grill bell peppers and eat them on their own or include them in other dishes.