Published: 5 February 2015 at 11:11
Research shows reduced body fat and improved performance in four-week trial
New research shows that green tea could help people to lose weight, if combined with exercise.
The study, led by Dr Justin Roberts of Anglia Ruskin University, is published in the Journal of the International Society of Sports Nutrition.
The researchers tested a capsule of decaffeinated green tea extract on 14 recreationally-active men, with an average age of 21. Seven volunteers took the green tea capsule each day for four weeks and seven were given a placebo.
Each capsule contained 571mg of decaffeinated green tea extract. This study is the first time decaffeinated green tea has been used in tests focusing on weight loss and performance, removing any potential effects of caffeine.
During the trial the researchers found that body fat reduced by 1.63% compared to the placebo group, while fat oxidation rates increased by 25%.
The 14 participants were required to cycle for one hour, three times per week. Those taking the green tea extract saw their performance increase by 10.9% over the four week period, increasing the distance covered from an average of 20.2km to 22.4km.
Dr Roberts, Senior Lecturer in Sport and Exercise Sciences at Anglia Ruskin University, said: