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soy foodsSoyfoods Safe for Breast Cancer Survivors
Evidence indicates that soy products are safe for breast cancer patients at levels similar to traditional Asian soy intakes—25 to 50 milligrams of isoflavones per day, equivalent to one to two servings daily—according to a recent study published in Nutrition Journal. Concerns had been raised about the safety of soy for breast cancer survivors because of the fear that isoflavones may stimulate the growth of existing estrogen-sensitive tumors. So far, there is no evidence of risk.

Messina MJ, Wood CE. Soy isoflavones, estrogen therapy, and breast cancer risk: analysis and commentary. Nutr J. June 3, 2008;7:17.

Obese Women at Higher Risk for Pancreatic Cancer
Women carrying more of their weight around the middle are at a 70 percent increased risk of developing pancreatic cancer compared with women with little excess weight in the stomach region, according to a new report in the British Journal of Cancer.

The study, which analyzed data from the Women’s Health Initiative, followed 138,503 women for eight years and analyzed body measurements from the 251 women who developed pancreatic cancer. Previous studies have shown that diets rich in fruits and vegetables and low in animal products are helpful for achieving a healthy weight and may also work to prevent pancreatic cancer, which has an average survival time of less than one year.

Luo J, Margolis KL, Adami HO, LaCroix A, Ye W, et al. Obesity and risk of pancreatic cancer among postmenopausal women: the Women’s Health Initiative (United States). Br J Cancer. August 5, 2008;99(3):527-531.

drinkerAlcohol Raises Colorectal Cancer Risk
Colorectal cancer risk increases with alcohol consumption, especially among Asian populations. In a new report published in the American Journal of Epidemiology, authors looked at five cohort studies to determine the level of increased cancer risk among Japanese men and women. They found that men consuming two to four drinks a day were at a 42 percent increased risk of developing colorectal cancer, compared with nondrinkers. A significant positive association was also seen in women.

Mizoue T, Inoue M, Wakai K, et al. Alcohol drinking and colorectal cancer in Japanese: a pooled analysis of results from five cohort studies. Am J Epidemiol. June 15, 2008;167(12):1397-1406.

The Cancer ProjectThe Cancer Project is a nonprofit PCRM subsidiary that advances cancer prevention and survival through nutrition education and research.



 

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