several researches show that green tea can increase fat burning,which leads to the reduction of fat in the body,especially the abdominal area ”.Example of research is UNIVERSITY PARK, Pa.Mice on a high-fat diet that consumed decaffeinated green tea extract and exercised regularly experienced sharp reductions in final body weight and significant improvements in health, according to researchers in Penn State's College of Agricultural Sciences, who suggest that similar results could be realized by people. After 16 weeks, high-fat-fed mice that exercised regularly and ingested green tea extract showed an average body mass reduction of 27.1 percent and an average abdominal fat mass reduction of 36.6 percent etc.