Abstract
Aronia is a fruit that has become increasingly popular in recent years. Numerous health-promoting effects resulting from consumption have been indicated, including the possibility of using aronia as a functional food in the prevention and support of therapy for various ailments. For the first time, we assessed the effects of the impact of a 90-day nutritional intervention on the level of selected minerals in the serum of women (n = 67) and men (n = 35). The consumption of 100 mL of juice for 60 days resulted in a significant increase in the levels of copper, manganese, and selenium. The addition of 10 g of aronia fiber resulted in a further increase in the concentration of these elements with antioxidant properties. An interesting observation is that the concentration of zinc decreased, which may indicate the operation of compensatory mechanisms. The above results indicate that regular consumption of aronia bio-products may have a beneficial effect on the concentration of microelements in the serum.