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Table 1 Results of the studies with endurance trained volunteers supplemented with vitamins A, C, and E

From: Controversies of antioxidant vitamins supplementation in exercise: ergogenic or ergolytic effects in humans?

Study Experimental design Sample Duration Suplementation protocol Result
     Vitamin A Vitamin C Vitamin E Ergogenic Ergolytic
Tauler et al. [6] Randomized, double-blind 15 athletes 90 d* 30 mg 1000 mg 500 mg
(β-caroten)
Gauche et al. [9] Randomized, double-blind 22 athletes 21 d (pre-exercise) + 2 dias (post-exercise) 6 mg 200 mg 32 mg N/R
(β-caroten)
Nielsen et al. [10] Randomized, double-blind, cross-over 15 athletes 28 d - 400 mg 180 mg
Patil et al. [11] Randomized, double-blind 37 athletes 21 d - - 200 mg
Louis et al. [12] Randomized, double-blind 16 athletes 21 d 17.1 mg 319.2 mg 48 mg N/R
     (β-caroten)     
  1. * Vitamin C supplementation occurred only in the last 15 days of the study; ↑ Improved exercise performance; ↔ No results on exercise performance; N/R – not reported.