Green tea consumption and risk of breast cancer: A systematic review and updated meta-analysis of case-control studies.

ABSTRACT:

Background

As the most popular beverage in East Asia, green tea (GT) has various biological activities effects such as anti-mutation, anti-oxidation, and anti-tumor. In this study, we aimed to evaluate whether GT consumption could be an effective way to decrease the risk of breast cancer.

Methods

We had performed a systematic review and updated meta-analysis of published case-control studies to evaluate the association between GT intake and the risk of breast cancer. Searching strategies were performed by the following keywords "Breast cancer," "breast neoplasm," and "green tea," with derivations and different combinations. The following databases were searched: PubMed, Cochrane Library, EMBASE, Web of science, China National Knowledge Infrastructure, WanFang, and China Biol

SUBMITTER: Yu S 

PROVIDER: S-EPMC6635178 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature