In fact, caffeine and EGCG — both of which are found naturally in green tea — may have a synergistic effect . When this enzyme is inhibited, the amount of norepinephrine increases, promoting fat breakdown . Lunaire Keto Although one cup of green tea may raise your antioxidant levels, most studies have examined the benefits of green tea extract — which is a concentrated source of catechins. However, green tea really shines in its…