Apple peels not only contain vitamins, but also the antioxidants that are so important. They are found in the pigments of fruits and vegetables - much more in the red skin than in the light skin, in the dark green flesh much more than in the white flesh. So always choose the colored one at the fruit counter or vegetable stand:a red apple contains more antioxidants than a green apple, a red onion more than a white onion. Red cabbage is better than white cabbage, green kiwi is better than yellow kiwi, dark green lamb's lettuce is better than light green leafy lettuce - easy choice, big benefit.