Table 2

Percentage of cross-over trial participants reporting increased flatulence each week by food type

Flatulence Change

Cross-over Trials


BEP Study

BB Study

Week #

All Beans

% (n)

Pinto beans

(n = 17)

Black eyed peas

(n = 17)

Vegetarian

Baked beans

(n = 29)

Control (carrots) (n = 39*)


1

35% (26)

50% (8)

19% (3)

47% (14)

3% (1)

2

19% (14)

6% (1)

12% (2)

24% (7)

11% (4)

3

15% (11)

0

6% (1)

29% (8)

5% (2)

4

11% (8)

12% (2)

6% (1)

11% (3)

5% (2)

5

5% (4)

6% (1)

0

11% (3)

0

6

5% (4)

6% (1)

6% (1)

7% (2)

0

7

5% (4)

0

6% (1)

11% (3)

0

8

3% (3)

6% (1)

6% (1)

7% (2)

0

X2 P value

<0.001

<0.001

0.653

<0.001

0.075


*Seven people participated in both cross-over trials and thus completed only one control phase.

Winham and Hutchins Nutrition Journal 2011 10:128   doi:10.1186/1475-2891-10-128

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