Changes in FOX did not reach the level of statistical significance .
Finding showed that EGCG intake moderately accelerates EE and reduces RQ .
The analyses revealed that the EGCG result ed in difference in RQ and EE but the effect on the other measures of energy metabolism was relatively mild .
Possibly , EGCG alone has the potential to increase metabolic rate at 300 mg dose .
Collectively , the outcome supports the findings that EGCG has an effect on metabolic parameters .
Green tea catechins ( GTCs ) are known to improve fat oxidation ( FOX ) during fasted , rested and exercise conditions wherein epigallocatechin-3-gallate ( EGCG ) is thought to be the most pharmacologically active and has been studied extensively .
From the available data of r and omized controlled trials ( RCTs ) on EGCG , we carried out a systematic review and meta- analysis to eluci date whether EGCG consumption indeed increase energy expenditure ( EE ) and promote FOX .
The effects of EGCG on fat oxidation and endurance performance in male cyclists.
Research ers have long been investigating strategies that can increase athletes ' ability to oxidize fatty acids and spare carbohydrate , thus potentially improving endurance capacity .  Green-tea extract ( epigallocatechin-3-gallate ; EGCG ) has been shown to improve endurance capacity in mice . If a green-tea extract can stimulate fat oxidation and as a result spare glycogen stores , then athletes may benefit through improved endurance performance . Eight male cyclists completed a study incorporating a 3-way crossover , r and omized , placebo-controlled , double-blinded , diet-controlled research design . All participants received 3 different treatments ( placebo 270 mg , EGCG 270 mg , and placebo 270 mg + caffeine 3 mg/kg ) over a 6-day period and 1 hr before exercise testing . Each participant completed 3 exercise trials consisting of 60 min of cycling at 60 % maximum oxygen uptake ( VO2(max ) ) immediately followed by a self-paced 40-km cycling time trial . The study found little benefit in consuming green-tea extract on fat oxidation or cycling performance , unlike caffeine , which did benefit cycling performance . The physiological responses observed during submaximal cycling after caffeine ingestion were similar to those reported previously , including an increase in heart rate  ( EGCG 147 + /- 17 , caffeine 146 + /- 19 , and placebo 144 + /- 15 beats/min ) , glucose at the 40-min exercise time point ( placebo 5.0 + /- 0.8 , EGCG 5.4 + /- 1.0 , and caffeine 5.8 + /- 1.0 mmol/L ) , and resting plasma free fatty acids and no change in the amount of carbohydrate and fat being oxidized . Therefore , it was concluded that green-tea extract offers no additional benefit to cyclists over and above those achieved by using caffeine
Changes in FOX did not reach the level of statistical significance .
Finding showed that EGCG intake moderately accelerates EE and reduces RQ .
The analyses revealed that the EGCG result ed in difference in RQ and EE but the effect on the other measures of energy metabolism was relatively mild .
Possibly , EGCG alone has the potential to increase metabolic rate at 300 mg dose .
Collectively , the outcome supports the findings that EGCG has an effect on metabolic parameters .
Green tea catechins ( GTCs ) are known to improve fat oxidation ( FOX ) during fasted , rested and exercise conditions wherein epigallocatechin-3-gallate ( EGCG ) is thought to be the most pharmacologically active and has been studied extensively .
From the available data of r and omized controlled trials ( RCTs ) on EGCG , we carried out a systematic review and meta- analysis to eluci date whether EGCG consumption indeed increase energy expenditure ( EE ) and promote FOX .