Table 3

Mean number of days of infection (mNDI) in three reports

Report

Placebo

Supplement

Percent Reduction

Report A [5]

48

23

52.1%

Report B [6]

23.7

11.1

52.7%

Report C [7]

29

14

51.8%

Sternberg and Roberts Nutrition Journal 2006 5:30   doi:10.1186/1475-2891-5-30