What Studies Say About Apples
Eating whole, solid fruit rather than puréed or juiced fruit, which is less filling, has been shown to increase feelings of fullness. At the beginning of a meal, one study found that eating apple segments, applesauce, or apple juice had a positive effect. Eating apples in their natural form, rather than in the form of apple sauce or juice, resulted in lower caloric intake, according to research. Eating apple segments resulted in a feeling of fullness and a decrease in hunger, when compared to other fruits.

What Studies Say About Apples