Green tea contains EGCG, an antioxidant that may help boost metabolism, according to some studies.

据研究，绿茶含有儿茶素，这是一种抗氧化剂，可以帮助促进新陈代谢。

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In a nutshell, green tea is full of EGCG, whereas black tea has very little.

总的来说，绿茶充满了茶素酸酯，然而红茶中却非常少。

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Laboratory work has shown that extracts from green tea that include EGCG stop or slow down the growth of some cancer cells.

实验室表明绿茶中egcg的提取物停止或减缓了某些癌细胞的扩散。

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The team of researchers, led by Dr Anastasis Stephanou, carried out laboratory tests on heart cells which found that a major chemical component of green tea known as epigallocatechin-3-gallate (EGCG) can reduce cell death after a heart attack or stroke.

BBC: NEWS | Health | Green tea 'may protect the heart'