Green tea contains high levels of polyphenols, which are a type of antioxidant.
The polyphenols in green tea are called catechins, and the most abundant catechin is epigallocatechin gallate (EGCG).
EGCG is a potent antioxidant that has been shown to have numerous health benefits, including reducing the risk of cancer and heart disease.
However, the amount of EGCG and other catechins in green tea can vary depending on factors such as the type of tea, how it is processed, and how it is brewed.
A balanced diet with a range of fruits and vegetables is the best way to acquire enough antioxidants, although green tea is a decent source.
In conclusion, green tea can be a good source of antioxidants, particularly EGCG, but it should not be relied upon as the sole source of these important compounds.