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GREEN TEA IN CANCER PREVENTION

There is an overhelming evidence of the benefits of green tea in cardiovascular conditions , antiaging and anti-cancer. To  get a high quality certified organic  tea green Sencha tea  go to www.healingremedies.com.au
Just 3 cups of green tea   have a therapeutic  effect.
Am J Clin Nutr. 2012 Nov;96(5):1056-63. doi: 10.3945/ajcn.111.031419. Epub  2012 Oct 10.

Prospective cohort study of tea consumption and risk of digestive system cancers: results from the Shanghai Women’s Health Study.

Nechuta S, Shu XO, Li HL, Yang G, Ji BT, Xiang YB, Cai H, Chow WH, Gao YT, Zheng W.

Source

Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37203-1738, USA.

Abstract

BACKGROUND:

Data from in vitro and animal studies support a protective role for tea in the etiology of digestive system cancers; however, results from prospective cohort studies have been inconsistent. In addition, to our knowledge, no study has investigated the association of tea consumption with the incidence of all digestive system cancers in Chinese women.

OBJECTIVE:

We investigated the association of regular tea intake (≥3 times/wk for >6 mo) with risk of digestive system cancers.

DESIGN:

We used the Shanghai Women’s Health Study, a population-based prospective cohort study of middle-aged and older Chinese women who were recruited in 1996-2000. Adjusted HRs and associated 95% CIs were derived from Cox regression models.

RESULTS:

After a mean follow-up of 11 y, 1255 digestive system cancers occurred (stomach, esophagus, colorectal, liver, pancreas, and gallbladder/bile duct cancers) in 69,310 nonsmoking and non-alcohol-drinking women. In comparison with women who never drank tea, regular tea intake (mostly green tea) was associated with reduced risk of all digestive system cancers combined (HR: 0.86; 95% CI: 0.74, 0.98), and the reduction in risk increased as the amount and years of tea consumption increased (P-trend = 0.01 and P-trend < 0.01, respectively). For example, women who consumed ≥150 g tea/mo (∼2-3 cups/d) had a 21% reduced risk of digestive system cancers combined (HR: 0.79; 95% CI: 0.63, 0.99). The inverse association was found primarily for colorectal and stomach/esophageal cancers.

CONCLUSION:

In this large prospective cohort study, tea consumption was associated with reduced risk of colorectal and stomach/esophageal cancers in Chinese women.