https://buyers-guide.hubpages.com/hub/Aronia-Berry-Healthiest-Fruit-and-Highest-Antioxidant

The aronia berry, also known as the Black Chokeberry looks close to the blueberry. Aronia is known for its antioxidant properties. Aronia berries are dark pigmented berries that are extremely high in antioxidants, higher than blueberries, cranberries and even pomegranates. Although native to the Americas, it is far more popular in Eastern Europe where its juice has been known to help people with heart conditions.
It has high levels of proanthocyanins and quinic acid which prevents urinary infection.

Nutritional benefits of the aronia berry are:
Polyphenols
Anthocyanins
Quinic Acid
Flavonols
Vitamins
Minerals
Health benefits of the aronia berry are:

Aronia has a high ORAC Value, due to the high concentration of anthocyanins and proanthocyanidins, both of which contribute to aronia’s dark purple color.

Diabetes
Inflamation
Cardiovascular Ailments
Ciculatory Problems
Urinary Tract Infections
Influenza (Flu)
Cancer

Study and Research on the aronia berry shows that this antioxidant berry may provide protection against colon cancer.
Aronia berry juice is extremely tart, so the natural juice is best sweetened. When sweetened it is a mix between a blueberry and a blackberry. The actual aronia juice has a very dark purple color.
In Europe and in the U.S. it is being widely used in delicious juices, soft drinks, jams and wine. The fruit is eaten fresh even when fully ripe. It is very high in Vitamin C.