Chokeberry Aronia berries contain carbohydrates, a group of flavonoids with P-vitamin activity, ascorbic acid, organic acids, tannins, sorbitol, manganese, molybdenum, copper, boron, iodine, magnesium, iron.It is used in hypertension, atherosclerosis, diseases of the kidneys (glomerulonephritis), diabetes mellitus, hemorrhagic diathesis, kapillyarotoksikozah, radiation sickness. The fruits of chokeberry Aronia have hypotensive action. Aronia strengthens blood vessel walls. The leaves contain substances that improve liver function, promote education and the outflow of bile.