There are minute differences in the nutritional content between both types of apples. Green apple is a better source of vitamin A, vitamin B, vitamin C, vitamin E and vitamin K as compared to its counterpart. Moreover, it contains more iron, potassium and protein than the red apple. As per some studies, green apples can be better for people trying to shed kilos. If you are trying to reduce your overall sugar intake then it is better to switch to green apples. Red apples, on the other hand, contain more antioxidants and are more delicious.