In 1953 my professor said apples didn't have good nutrition and they were a waste to eat. Now the experts say apples are good for you because they provide fiber and good carbs, however some apples are sweeter than others. Green apples make excellent baked pies but the pies can be not so good for you.
The important thing is balanced nutrients so apples for a snack could make a sugar spike if there is no protein to go with them. I love apple salad because I add nuts, celery, grapes, and other ingredients to the apples. It is very filling. A plain apple would only make me hungry. If you avoid the high carb and high sugar foods, you can eat about any nutritious foods in combination. Go to the produce department and try a new food every week. Enjoy. Dorisena