Black raisins are cholesterol-free, low in sodium, totally fat-free, they're a good source of carbohydrates for energy and these raisins are rich in vitamin-B, iron and potassium Black raisins are high in antioxidants as well as essential phytochemicals. So it can avert premature aging eventually. Black raisins are are full of iron, which is a vital and essential nutrient for healthy hair. Black raisins are are full of iron, which is a vital and essential nutrient for healthy hair. It helps in digestion, reduces acidity and increase immunity. Also keeps blood free from impurities and protects the skin cells. Great Preworkout snacks to boost energy levels.