Over-peeling produce removes valuable nutrients and fiber found just beneath the skin, and it also leads to unnecessary food waste.
Many fruits and vegetables have a high concentration of vitamins, minerals, and fiber in the outer layers, particularly right under the skin. When you peel too deeply, you're essentially throwing away the most nutritious part of the food. For example, potato skins are rich in fiber, iron, and potassium. Similarly, the peel of an apple contains antioxidants and fiber. Over-peeling also contributes to food waste, as you're discarding edible portions of the produce. Consider that the peel often provides texture and flavor that enhances the overall eating experience.
Instead of peeling, thoroughly wash produce with a vegetable brush to remove dirt and pesticides. If you must peel, aim for the thinnest layer possible to preserve nutrients and minimize waste.