Background: Green tea has been consumed for thousands of years, and has been known to
have many medicinal properties such as, anti-cancerous, anti-atherogenic, anti-oxidative, antiinflammatory
and anti-bacterial. With the increasing prevalence of Cardiovascular Disease (CVD),
and its major risk factor, obesity, there has been increasing interest in green tea as a potential antiobesity
therapy. Evidence has demonstrated that green tea decreases body weight. However, it remains
unclear through which pathway and mechanism green tea exerts its anti-obesity properties. The
metabolic adipose tissue hormones, adipocytokines, leptin and adiponectin have been studied extensively
as a potential target for green tea and its main catechin, Epigallacatechin Gallate (EGCG).
Conclusion: It has been demonstrated that green tea consumption decreases leptin levels which may
directly decrease body weight through increasing energy expenditure and fat oxidation. Furthermore,
ingestion of green tea or its catechins has been associated with increased adiponectin levels which
may indirectly reduce body weight through insulin sensitivity.