Raisins are a widespread type of dried fruit that is the dried fruit of the grape. In fact, dried fruits are grapes completely devoid of liquid.The unique composition of black raisins is very beneficial for our body. Dried fruits are not easy nutritious and tasty, but they also have medicinal qualities that make them even more valuable than fresh grapes. Regular consumption of small amounts of raisins is good for the heart. A high potassium content stimulates the work of the heart muscle, contributes to the saturation of the myocardium with oxygen, therefore, reduces the manifestation of coronary artery disease and angina pectoris.