It has been shown to increase metabolic rate by 10%, leading to decreased storage of fat in the abdomen and increased fat loss in the upper arms.
Both the caffeine and epigallocatechin (EGCG) in oolong tea can help speed up the body's natural fat-burning processes.
Moderate and regular use of tea, especially oolong, was associated with a lower incidence of type 2 diabetes.
Regulation of digestive enzymes is another mechanism through which oolong tea fights fat.
The polyphenols in oolong tea slow down the digestion of sugars and fats, which prevents hunger and binge eating.
Short-chain fatty acids (SCFAs) are produced by the polyphenols in oolong tea when they react with undigested carbohydrates in the intestine.
Polyphenols may also work through changing the composition of the microbiota in the digestive tract.
There are trillions of bacteria in our intestines, and they help keep our digestive system healthy. A healthy bacterial habitat is disrupted by a diet heavy in both fat and sugar.