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Table 2 Energy, macronutrient and folic acid intakes at three time points

From: Effect of folic acid supplementation on homocysteine concentration and association with training in handball players

N = 14 RDA Week 0 Week 8 Week 16
  Mean SD Mean SD Mean SD
Energy (kcal/kg/day) 44* 34.45 3.56 38.91a 4.15 38.54a 2.94
Macronutrients (g/day)        
Protein 104 – 147* 133.43 14.32 146.64 35.64 147.04a 25.51
Carbohydrate 519 – 865* 360.91 27.64 421.50a 49.24 416.80a 38.82
Fat 78 – 95* 118.57 22.52 132.22 a 17.75 129.57 21.79
Macronutrients (g/kg/day)        
Protein 1.2 - 1.7* 1.54 0.22 1.70 0.44 1.70a 0.33
Carbohydrate 6 – 10* 4.17 0.41 4.88a 0.60 4.82a 0.36
Fat 0.9 – 1.1* 1.37 0.28 1.53a 0.19 1.49 0.21
Macronutrients (% energy intake)        
Protein 12 – 15%* 17.97 1.83 17.47 3.73 17.65 2.54
Carbohydrate 45 – 65%* 48.66 4.10 50.21 2.54 50.20 3.62
Fat 20 – 35%* 35.71 4.88 35.51 3.81 34.92 4.01
Vitamins (μg/day)        
Folic acid 400* 301.97 89.05 516.11a 54.49 290.35b 98.57
  1. RDA, recommended daily allowance. SD, standard deviation.
  2. * Values used for comparison were from previous publications [28, 29].
  3. a Statistically significant differences (P < 0.05) between Week 0 vs. Week 8 and Week 16.
  4. b Statistically significant differences (P < 0.05) between Week 8 vs. Week 16.