Table 1.

Characteristics of included studies.

Type	Name	Manufacture origin	Way of make soup	Group
Dark tea	Golden fungi	Qiyan, Hunan province	Boiled	HB
White tea	Old eyebrow	Fuding, Fujian province	Boiled	HW
Yellow tea	Golden buns	Jiangkou, Guizhou province	Boiled	HY
Green tea	Green pearls	Meitan, Guizhou province	Brewed	HG
Blue tea	Titkuanyim	Anxi, Fujian province	Brewed	HT
Black tea	Yunnan red	Yongping, Yunnan province	Brewed	HR