The powdered aronia berries are a source of nutrients with the highest concentration of antioxidants compared to any other fruit. The dark-colored fruits offer the highest percentage of nutrients, as the dark color is associated with the plant's high content of anthocyanins, natural substances with strong antioxidant properties.

The black Aronia berry is the darkest and offers more nutrients than blackberries and blueberries. Analysis of the anthocyanins in chokeberries identified the following chemical compounds:

• cyanidin-3-galactoside
• epicatechin
• caffeic acid
• quercetin
• delfinidin
• petunidin
• pelargonidin
• peonidin
• malvidin

All of these, except for caffeic acid, belong to the category of flavonoid phenolic antioxidants, which contribute to health.