Tea, hormone-related cancers and endogenous hormone levels

Wu, A.H.; Yu, M.C.

Molecular Nutrition and Food Research 50(2): 160-169

2006


ISSN/ISBN: 1613-4125
PMID: 16470648
DOI: 10.1002/mnfr.200500142
Accession: 004479385

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Abstract
Tea is one of the most popular beverages consumed around the world, second only to water. There has been substantial interest in the potential role of tea in cancer prevention, particularly in respiratory and gastrointestinal tract cancers. Recent epidemiological data have linked tea intake to reduced risk of hormone-related cancers, including breast, ovarian and prostate cancers. Based on sparse data, there is suggestion that tea intake may influence circulating hormone levels, providing a plausible mechanism whereby tea intake may influence risk of hormone-related cancers. The major objectives of this paper are to review the epidemiological evidence on tea and risk of breast, ovarian, and prostate cancers as well as the human and non-human studies on tea and circulating hormone levels. We pay special attention to some of the limitations of the human studies and discuss future research needs.

Tea, hormone-related cancers and endogenous hormone levels