Coyle et al. [16], Almajano et al. [17], Narotzki et al. [18], and Espinosa et al. [19] confirmed in their studies the positive impact of white and green teas on the antioxidant activity and also on many biological as well as biochemical processes in the organism. The content of phenolic substances also depends on the method of their extraction from tea leaves, which was confirmed by Rusak et al. [20].