en Nutrition Nutrition پژوهشي Research <p style="text-align:justify"><span style="font-size:10pt"><span style="line-height:115%"><span style="tab-stops:409.5pt"><span style="unicode-bidi:embed"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:11.0pt"><span style="line-height:115%">Background and Objectives:</span></span></b> 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.<b> </b><span style="font-size:11.0pt"><span style="line-height:115%"></span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="tab-stops:409.5pt"><span style="unicode-bidi:embed"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:11.0pt"><span style="line-height:115%">Materials and Methods:</span></span></b> 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.<b> </b><span style="font-size:11.0pt"><span style="line-height:115%"></span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="tab-stops:409.5pt"><span style="unicode-bidi:embed"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:11.0pt"><span style="line-height:115%">Results: </span></span></b>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<br> (P = 0.05, P < 0.0001, respectively).<span style="font-size:11.0pt"><span style="line-height:115%"></span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="tab-stops:409.5pt"><span style="unicode-bidi:embed"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:11.0pt"><span style="line-height:115%">Conclusions: </span></span></b>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.<span style="font-size:11.0pt"><span style="line-height:115%"></span></span></span></span></span></span></span></p> Green tea, Cortisol, Serotonin, Anxiety 33 39 http://nfsr.sbmu.ac.ir/browse.php?a_code=A-10-672-2&slc_lang=en&sid=1 fatemeh dini mailto:dinifatemeh521@gmail.com 10031947532846007075 0009-0004-3487-1530 No M.Sc. in Exercise Physiology, Department of Sport Sciences, Faculty of Social Sciences, Imam Khomeini International University, Qazvin, Iran Hassan Pourrazi purrazi.h@gmail.com 10031947532846007076 10031947532846007076 Yes Associate Professor of Exercise Physiology, Department of Sport Sciences, Faculty of Social Sciences, Imam Khomeini International University, Qazvin, Iran