Chokeberries are outstanding with great amounts of vitamin P and also contains vitamin C. These berries should be included in the menu of people who have disturbances in the blood flow in blood-vessels. A number of observations and experiments prove that chokeberries have an effect of enlarging the blood vessels. Consequently, they are recommendable for those suffering from hypertension. Pectins and fibres attract the radioactive substances: cobalt, strontium, caesium, also cholesterol and eliminate them from the human body. Chokeberries also facilitate regeneration processes in muscles and muscle tissues, normalize activity of thyreoid gland and cerebra, reduce emotional stress, and improve appetite and digestion. They have antimicrobial and antivirus effect, the phytoncides prevent from development of carriers of dysentery and staphyilococcus infection.