 Memory impairment is one of the common health problems in menopausal women. Due to the therapeutic efficiency limitation, the searching for the protective intervention for this condition is required. Based on the previous findings that the combined extract of Z. mays purple color and P. amaryllifolius based-drink MP1 could attenuate memory impairment in animal model of menopause, the investigators aimed to investigate the effect of MP1 functional drink on working memory, psychological fitness, possible underlying mechanism and the consumption safety in menopausal volunteers. 