2, in general, the apple does not peel because the skin contains many nutrients, such as: phenolic substances, flavonoids, dietary fiber, vitamins, etc., eat directly to preserve the apple more nutritional value.
3, and peeled apples, is because apples in the planting process may use a lot of pesticides, people in the consumption of apples if not carefully cleaned, stagnant in the skin of the apple fertilizer pesticides may induce physical disease, so in order to possible food hygiene and safety hazards to consider, then, apples washed, peeled and eaten better, and nutrients can be supplemented through a variety of food sources to obtain, the apple is just one of them, daily balanced diet to eat. Apple is just one of them, daily balanced diet, do not have to worry about the problem of nutrient deficiency.