Research shows that most of its weight loss properties are due to its rich polyphenols, and a subgroup of these polyphenols known as catechins.
Oolong tea comes from the same leaves where you'd find green and black tea, but it's partially oxidized, whereas green tea is unoxidized, and black tea goes through full oxidation.
Fans of chai, English breakfast tea, and Earl Grey (all types of black tea) will be pleased to know that research has linked black tea to weight loss and reduced visceral fat.
White tea—along with green and oolong—has been found to speed up metabolism and increase fat oxidation, which may help with overall weight loss or management.
Now that we've gone over the belly fat-melting benefits of green, oolong, black, and white tea, let's look at a specific type within these categories.