The investigators performed a 8-week, randomized, double-blind, placebo-controlled human
trial to evaluate the efficacy and safety of Prunus Mume Extract on Improvement of
Constipation. The investigators measured Improvement of Constipation parameters , including
Colonic Transit Time, number of bowel movement, defecation time, stool type, color and stool
amounts per defecation, and monitored their blood pressure.