Figure 2.

The systolic blood pressure and diastolic blood pressure at baseline and 8 weeks are shown as the group average ± standard error of the mean of the 74 people who completed the 8-week study.

Notes: The reduction in both systolic and diastolic blood pressure was most prominent in the male population consuming nattokinase. The reduction in systolic blood pressure did not reach statistical significance. The difference in diastolic blood pressure between the nattokinase and the placebo group at 8 weeks was statistically significant (*P<0.05). The reduction in diastolic blood pressure within the male population consuming nattokinase over the 8 weeks period reached a high level of significance (P<0.006).