Often referred to as nature's candy, raisins (dry grapes) are produced in many regions of the world. Raisins retain virtually all the nutrition of the original grapes but weigh less than a fourth as much. Rich source of antioxidants, it helps keep the blood clean & flowing. Raisins are said to be beneficial for bone density. Raisins are snack rich in vitamins B, iron and potassium are also a good source of carbohydrates for energy.