Both types of apples differ slightly in nutritional value. Green apple is a better source of Vitamin A, Vitamin B, Vitamin C, Vitamin E, and Vitamin K compared to its counterpart. In addition, it contains more iron, potassium and protein than a red apple. Some studies show that green apples may be better for those trying to lose weight. If you’re trying to reduce your overall sugar intake, it’s better to switch to green apples. On the other hand, red apples contain more antioxidants and are tastier.