If you're looking for a healthy snack, you really can't go wrong with an apple. As Stephani Johnson, DCN, RDN, told Prevention , there is some wisdom to the old saying about eating an apple a day . "Their nutrient density and fiber content contribute to overall health, making them a beneficial choice for daily consumption," she said. In fact, a medium-sized apple with the skin on contains only 95 calories while providing 4.4 grams of fiber and 194.7 grams of potassium. And, while they do contain 19 grams of sugar, it's in the form of fructose, a natural sugar found in all fruits. Just eat them whole with the skin on to maximize their nutritional benefits, such as better digestion and feeling fuller after meals. Thanks to their antioxidant content, they can also be a delicious part of a

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