Eating more fruits and vegetables may help you lose weight, according to a study published in "Nutrition Research" in April 2008. In the study, each 3.5-ounce increase in daily fruit consumption led to an 0.7-pound weight loss after six months. While this isn't likely to bring about large amounts of weight loss, it can add up over time. You'll also increase your nutrient intake because apples provide significant amounts of vitamin C and fiber.