Researchers in Japan recently published the results of their investigation into possible associations between citrus fruit consumption and cancer incidence.Â For this study, citrus consumption and cancer incidence was assessed in over 42,000 Japanese adults between 40-79 years of age.Â Between 1995 and 2003, 3,398 cancer cases were identified.Â Relative risks of cancer incidence was calculated for different levels of citrus fruit consumption: 'never', 'occasionally', '1-2 times/week', '3-4 times/week', and daily.Â The cancer investigators reported that:
- When all volunteers were assessed, daily citrus fruit consumption was associated with an 11% reduction in all-cancer incidence.
- Daily citrus fruit consumption was linked to a 14% reduction in all-cancer risk in men and a 7% reduction in all-cancer risk in women.
- Drinking 1 or more cups of green tea per day in addition to eating citrus fruit daily reduced all-cancer risk even more: 17% for all volunteers combined, 17% risk reduction in men, 18% reduction in risk for women.
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