Black Raisins have also been known to help in attempts to gain weight in a healthy way, as well as its positive impact on eye health, dental care, and bone quality. Raisins contain a considerable amount of iron which directly helps in the treatment of anemia. It also contains many members of the vitamin-B complex that are essential for the formation of new blood. The high copper content in raisins also helps the formation of red blood cells Raisins contain polyphenolic phytonutrients which have antioxidant properties. These phytonutrients are very good for ocular health, as they protect eyes from the damage caused by free radicals (oxidants), in the form of macular degeneration, age-related weakening of vision, and cataracts. In addition to their antioxidant qualities, raisins contain significant amounts of vitamin-A, A-Beta Carotene and A-Carotenoid, all of which are essential for good ocular health.