Bell Peppers
There is a reason you are told by your doctor to take in more vitamin C when you catch a flu or get sick. This nutrient can boost your immune system and increase the number of white blood cells. While citrus fruits such as oranges are a common source of vitamin C, bell peppers are also rich in this vitamin. On average, 1 cup of red peppers has around 120mg of vitamin C, which is more than the recommended 70mg for most adults. Red peppers will contain more. [13]
