| |
Tea and coffee intake in relation to risk of breast cancer in the Black Women's Health Study.
Cancer Causes Control. 2010 Aug 3.
Boggs DA, et al
Slone Epidemiology Center at Boston University, 1010 Commonwealth Avenue, Boston, MA, 02215, USA
Abstract
OBJECTIVE: Prospective studies of tea and coffee intake and breast cancer risk have yielded inconsistent results.
None of these studies has reported separately on African-American women. We prospectively examined the relation of tea and coffee consumption to risk of breast cancer among 52,062 women aged 21-69 at enrollment in 1995 in the Black Women's Health Study.
METHODS: Dietary intake was assessed in 1995 and 2001 using a validated food frequency questionnaire. Cox proportional hazards models were used to estimate incidence rate ratios (IRR) and 95% confidence intervals (CI), adjusted for breast cancer risk factors.
RESULTS: During 12 years of follow-up through 2007, there were 1,268 incident cases of breast cancer.
Intakes of tea, coffee, and caffeine were not significantly associated with the risk of breast cancer overall. The IRRs for consumption of >/=4 cups/day compared with none were 1.13 (95% CI 0.78-1.63) for tea and 1.03 (95% CI 0.77-1.39) for caffeinated coffee, and the IRR for the top quintile relative to the bottom quintile of caffeine intake was 1.04 (95% CI 0.87-1.24).
Consumption of tea, coffee, and caffeine was not significantly associated with breast cancer risk according to menopausal status or hormone receptor status.
CONCLUSION: Our findings suggest that intakes of tea, coffee, and caffeine are not associated with the risk of breast cancer among African-American women.
|
Green tea and cancer prevention.
Nutr Cancer. 2010 Oct;62(7):931-7.
Honest Tea Press Releases
Herbal teas, including all the teas discussed in these pages, should not be consumed by persons who are pregnant or nursing, unless approved by your health care provider. Herbal teas may vary in their ingredients and some herbal tea components may interfere with other important medications. For example, there is some concern that green tea ingestion during pregnancy may reduce the absorption of folate, an important nutrient in fetal nervous system development.
keywords and tags:
tea, green tea, natural tea, red tea, african tea, white tea, chinese tea, black tea, tea benefits, green tea skin care products,green tea and weight loss, Chamomile Tea, herbal teas, mint tea, oolong tea, natural tea news, black dragon tea, hibiscus tea, new tea products, unsweetened tea, tazo tea, Pu-ehr tea, Earl Grey Tea,
Masala Indian Spiced Tea, Moroccan Tea, Mint Tea, Lemongrass Tea, Yerba Tea, Kombucha Tea
|
|
|
Learn about
Green Tea
Black Tea
Herbal Teas Pu-ehr Tea
Red Tea Chamomile Tea
Raspberry Tea |
White Tea
Tea Skin Care Products
At AllNaturalTea.com |
|
|
