The essence of producing dried fruit lies in removing moisture from fresh fruit-typically through methods such as air-drying or oven-drying-which results in a high concentration of nutrients and calories. For instance, while 100 grams of fresh grapes contain approximately 60 kcal, the same weight of raisins packs around 300 kcal; similarly, 100 grams of fresh apples provide about 52 kcal, whereas dried apples contain nearly 300 kcal. In other words, consuming just a small handful of dried fruit delivers a caloric intake equivalent to several servings of fresh fruit, which is a primary reason why they can easily contribute to weight gain.