Ammar salehi; Hamed kord Varkaneh; mohammadreza emami; mina ahmadzade; HANIEH IRANI
Volume 27, Issue 3 , September and October 2020, , Pages 363-372
Abstract
Introduction: No study compared the effectiveness of the green tea, fiber, caffeine and L-carnitine on weight loss in individuals. Therefore, the aim of this study was to evaluate the efficacy of green tea, fiber, caffeine and L-carnitine in clinical aspects of people. Materials and Methods: The ...
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Introduction: No study compared the effectiveness of the green tea, fiber, caffeine and L-carnitine on weight loss in individuals. Therefore, the aim of this study was to evaluate the efficacy of green tea, fiber, caffeine and L-carnitine in clinical aspects of people. Materials and Methods: The databases of Pubmed, Scopus and Cochran were searched up to November 2018. The pairwise method was used to compare the difference between the mean weight loss of drugs in two direct methods (comparison of drugs with the control group) and non-direct (Compare medications together). Results: The present study performed on 73 clinical studies with a cumulative population of 3921, showed that caffeine (-0.88 kg; -2.60 to -0.84), caffeine + catechine (-0.74 kg; -1.70 to 0.21), green tea (-0.61 kg; -1.33 to -0.11), fiber (-0.31 kg; -0.79 to -0.17), respectively, had the most effect on weight loss compared with the placebo group. In addition, carnitine supplementation did not effect on weight loss. Conclusion: The present study indicated that green tea supplementation had a lower effect on weight loss compared with caffeine and caffeine+catechin, and had a greater effect on weight loss compared with fiber and carnitine.
Nahid Bijeh; fahime sadat jamali; fateme nejati; mahbobe lotfalizade
Volume 25, Issue 5 , November and December 2018, , Pages 706-714
Abstract
Background: Obesity in patients is followed by decreased kidney function and leads to renal damage in healthy people. The aim of this study was to investigate the effect of aerobic exercise with and without green tea consumption on kidney function in sedentary postmenopausal women.Materials and Methods: ...
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Background: Obesity in patients is followed by decreased kidney function and leads to renal damage in healthy people. The aim of this study was to investigate the effect of aerobic exercise with and without green tea consumption on kidney function in sedentary postmenopausal women.Materials and Methods: Out of 60 volunteers, 29 sedentary postmenopausal women with a body mass index higher than 25 kg/m2 were randomly divided into three groups, exercise, supplement and exercise+supplement. Aerobic exercise program was performed for 8 weeks, 3 sessions per week and each session for 45 minutes at 65-75 % of maximum heart rate. Supplement groups consumed 6 g of green tea powder in 600 ml of almost boiling water (80 °) daily and one hour before their meals for 8 weeks. Combined group performed exercise and consumed supplement, simultaneously.Results: In supplement group, creatinine levels (p=0.048) decreased significantly; While none of the variables in exercise group (uric acid (p=0.432), urea (p=0.681) and creatinine (p=1)) and exercise+supplement group (uric acid (p=0.597), urea (p=0.270) and creatinine (p=0.235)) had no significant change. Between groups changes in any of the variables was not significant too.Conclusion: Eight weeks of aerobic exercises in water alone and in combination with green tea consumption did not improve renal function in obese and overweight postmenopausal women, while green tea consumption alone decreased serum creatinine and improved renal function.