Because of the high fiber content, it can aid with digestion. It also contains valuable B vitamins, which are important to your overall health. Corn also provides our bodies with essential minerals such as zinc, magnesium, copper, iron and manganese. Corn is a good source of the antioxidants carotenoids, lutein and zeaxanthin, which promote eye health. Diabetic should be consider the serving amount, about15g (1/2 cups) is about 1 count of carbohydrates.