This study is to determine the effects on a single-dose of nattokinase administration (4,000FU) on activity of natural killer (NK) cells in healthy male subjects. As a result, comparing to the placebo, a significant increase of NK cells was observed in the nattokinase group.
| Subjects | 10 healthy male subjects |
| Experimental Diet | A single dose of CD2000 Nattokinase capsules (4,000FU / capsules) |
| Trial Design | A randomized, double-blind, placebo controlled crossover nattokinase intervention trial |
