Abstract

Today, most researchers believe that polyphenols have wide-ranging applications and protect the human body from many diseases. This paper studies the total phenolic content (TPC) and the content of heavy metals in the selected leaves of plants that athletes actively use as a supplement to a healthy diet. For analysis, blackberry, raspberry, currant, and hawthorn leaves are used, and green tea, black tea, and chamomile flowers are used for comparison of characteristics. The extractive and total content of phenols in the vegetative part of berry crops are the most favorable indicators for fortifying sports nutrition products because these indicators are comparable to that of green and black tea. Berries and fruits have small antioxidant capacities, since they have high sugar content. Sugar provides high extractability but does not contribute to antioxidant effectiveness.

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