A chemical found in green tea appears to slow the progression of prostate cancer, a study has suggested.
Green tea has been linked to a positive effect on a wide range of conditions, including heart disease, cancer and Alzheimer's disease.
The research, in the US journal Cancer Prevention Research, found a significant fall in certain markers which indicate cancer development.
A UK charity said the tea might help men manage low-risk tumours.
Although previous studies have shown benefits from drinking green tea - including some positive findings in relation to prostate cancer, there have been mixed results.
In this study, Philadelphia-based researchers tested a compound called Polyphenon E.
They were looking for a number of biomarkers - molecules - including vascular endothelial growth factor (VEGF) and hepatocyte growth factor (HGF) which are indicators of developing cancer.
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