Table 2. The comparison of the in dietary intake at the baseline and the end of the study in patients with irritable bowel syndrome.

Variables		Placebo (n = 21)	Ellagic acid (n = 22)	P1
Energy (kcal)
	Baseline	1,908.27 ± 380.67	1,961.31 ± 367.27	0.307
	End	1,890.49 ± 401.19	1,973.20 ± 360.09	0.299
	P2	0.503	0.499
Protein (g)
	Baseline	74.34 ± 17.14	76.41 ± 19.02	0.314
	End	73.63 ± 16.97	76.88 ± 21.10	0.300
	P2	0.407	0.480
Carbohydrate (g)
	Baseline	248.83 ± 41.93	254.67 ± 42.97	0.540
	End	245.52 ± 41.53	256.21 ± 43.10	0.492
	P2	0.607	0.643
Fat (g)
	Baseline	71.47 ± 16.22	72.14 ± 20.48	0.716
	End	68.55 ± 37.01	71.31 ± 24.11	0.695
	P2	0.291	0.382
Saturated fatty acids (g)
	Baseline	19.27 ± 5.00	19.45 ± 5.72	0.705
	End	18.17 ± 6.40	20.08 ± 3.23	0.612
	P2	0.415	0.541
Monounsaturated fatty acid (g)
	Baseline	27.19 ± 7.09	28.02 ± 6.08	0.749
	End	26.11 ± 5.03	28.91 ± 6.11	0.546
	P2	0.617	0.719
Polyunsaturated fatty acid (g)
	Baseline	22.09 ± 8.13	22.85 ± 7.29	0.780
	End	21.19 ± 6.12	21.01 ± 4.18	0.803
	P2	0.307	0.243
Fiber (g)
	Baseline	6.39 ± 0.91	6.48 ± 1.04	0.407
	End	6.03 ± 2.24	6.71 ± 2.17	0.354
	P2	0.207	0.210
Vitamin C (mg)
	Baseline	68.09 ± 17.09	69.47 ± 13.27	0.704
	End	66.28 ± 47.11	68.27 ± 9.67	0.501
	P2	0.570	0.609
Vitamin E (IU)
	Baseline	6.39 ± 0.11	6.79 ± 0.27	0.405
	End	5.83 ± 0.91	6.80 ± 0.40	0.102
	P2	0.311	0.821
Selenium
	Baseline	119.47 ± 29.12	120.08 ± 21.14	0.457
	End	118.6 ± 27.13	119.13 ± 23.04	0.263
	P2	0.302	0.451

Data are expressed as means ± standard deviation.

P1: comparison of the mean of dietary intake between the 2 groups of ellagic acid and placebo (independent samples t-test). P2: comparison of mean of baseline characteristics in each group at baseline and end of study (paired samples t-test).