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Table 2 Dietary intake of migraine patients who received either zinc supplement or placebo throughout the trial

From: Zinc supplementation affects favorably the frequency of migraine attacks: a double-blind randomized placebo-controlled clinical trial

  Zinc groupa Placebo groupb t df P-value*
Energy (Kcal) 1737.0 ± 183.7 1957.1 ± 148.4 −0.93 67 0.35
Proteins (g/d) 68.9 ± 6.7 75.6 ± 5.4 − 0.77 67 0.44
Carbohydrates (g/d) 78.6 ± 10.6 246.8 ± 22.3 − 6.78 48.6 < 0.001
Fats (g/d) 213.9 ± 30.2 154.6 ± 30.6 1.37 67 0.17
Calcium (mg/d) 934.0 ± 130.5 921.8 ± 149.1 0.06 67 0.95
Magnesium (mg/d) 293.5 ± 31.8 299.9 ± 27.1 −0.15 67 0.87
Phosphorous (mg/d) 1350.4 ± 124.4 1736.4 ± 246.0 −1.38 67 0.17
Zinc (mg/d) 8.1 ± 0.6 10.2 ± 0.7 − 2.27 67 0.02
Fiber (g/d) 16.0 ± 1.7 20.7 ± 2.9 −1.37 67 0.17
  1. All values are presented as mean (SE)
  2. aReceived zinc capsule containing 220 mg zinc sulfate one time per day
  3. bReceived placebo capsule containing lactose one time per day
  4. *Obtained from independent sample t-test