Why does the whole apple (skin and all) offer steadier fuel and a lower glycemic index impact than if it were juiced or peeled?
Answer
Because its higher fiber content provides steadier fuel
The apple, especially when eaten unpeeled, provides a substantial amount of fiber, totaling around 4.4 grams in a medium fruit. This significant fiber load slows down the rate at which the fruit's natural sugars are absorbed into the bloodstream. Consequently, eating the whole apple results in a lower glycemic index impact compared to consuming it without the fiber-rich skin, such as when it is juiced or peeled. This results in a more sustained release of energy, making the whole apple an excellent choice for long-lasting fuel, such as during a mid-morning snack.
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