the effect of short-term green tea supplementation on serum cortisol and serotonin levels in young anxious women

Background and objectives: in recent years, the use of dietary supplements to combat anxiety has increased. therefore, the present study aimed to assess the effect of short-term green tea supplementation on serum cortisol and serotonin levels in young anxious women. materials and methods: in this randomized clinical trial, 20 young anxious women were randomly assigned to either a control or a green-tea supplementation group. participants in the supplementation group consumed 1000 mg of green tea daily for one week. heart rate, systolic blood pressure, rate-pressure product, serum cortisol and serotonin levels were assessed before and after the intervention. data were analyzed using paired and independent t-tests at a significance level of 0.05. results: the findings indicated no significant differences between the control and supplementation groups for changes in heart rate, systolic blood pressure and cortisol levels (p = 0.09, p = 0.15 and p = 0.96, respectively). however, green tea supplementation significantly decreased the rate-pressure product and significantly increased serum serotonin levels(p = 0.05, p < 0.0001, respectively).conclusions: overall, short-term green tea supplementation seemed to contribute to anxiety management in young anxious women by decreasing the rate-pressure product and increasing serum serotonin levels.