Dry fruits, especially almonds, are very effective for improving hemoglobin. Almonds help to form new blood cells, as well as increase the level of hemoglobin in the blood. The unsaturated fat, vitamin B, phosphorus, copper and iron found in the nuts helps in the smooth functioning of all the vital organs of our body. Peach has a good source of potassium, vitamin A, fiber and copper and helps maintain high energy levels throughout the day. We must put a bunch of peach in the pocket and eat it throughout the day. Cashew possesses a high proportion of copper as it provides a great deal of flexibility in blood vessels. In fact, eating any type of dry fruit provides energy and also helps us stay alert and thus enhance memory improvement.