NSK-SD and Blood Flow

Blood Flow Improving Effect

We have a human study that shows a single dose of NSK-SD is effective in increasing blood flow to hands and feet.

• Luchi et al. 2006 - 15 healthy men and women were given a single dose of 2,000FU of NSK-SD. Increased blood flow was observed in the fingers and back of hands compared to baseline, 80, 120, and 180 minutes after consumption.

• Nara et al. 2023 - 9 healthy subjects were given a single dose of nattokinase or a placebo before immersing their hands in cold water. The nattokinase group showed significantly quicker recovery times in skin temperature after the water immersion than the placebo group in this double-blind, placebo-controlled, crossover study (p < 0.05). The results supported the findings that nattokinase improves blood flow through its effects on skin temperature, which is predominately controlled by skin surface blood flow.