Apples

Apple is one fruit that helps in weight gain as well as weight loss. When apples are consumed in moderate quantities, they help in shedding down those extra kilos. But when consumed in excess, the fiber in the apples makes you feel more hungry after some time, allowing you to increase your calorie intake. The fruit sugars present in apples can also help you put on some weight quickly. You can eat apples in the form of smoothies, whole fruits etc.