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vitamin C, polyphenols, antioxidant potential, diet, athletes, chemical analyses


The aim of the study was to analytically evaluate the total content of vitamin C and polyphenols as well as the antioxidant potential of daily food rations planned for athletes. Chemical analyses showed that an average food ration for women (2,120.1 kcal, 90.8 g protein, 53.1 g fat and 354.0 g carbohydrates) contained 5.5±2.6 mg vitamin C and 20.1±4.1 mg polyphenols in 100 g fresh mass. An average food ration for men (2,648.8 kcal, 112.5 g protein, 63.1 g fat and 447.4 g carbohydrates) contained 5.6±1.4 mg vitamin C and 22.9±8.1 mg polyphenols in 100 g fresh mass. The antioxidant potential of an average ration for women expressed as reducing power (FRAP index) in 100 g fresh mass was 8.2±0.7 mmol Fe+2,  and for men,  8.9  ±0.9 mmol Fe+2.  The antioxidant potential of an average ration prepared for women and men expressed as antiradical activity against  DPPH  in  100  g fresh mass was respectively: 2.7±02  mmol and  2.7±0.4  mmol  Trolox equivalent.  Balanced food rations rich in products with high nutrient density can ensure the appropriate intake of vitamin C and polyphenols and high antioxidant potential of the diet.

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