Extensive Study Finds That Diets Rich in Soy May Not Protect Against Stomach Cancer

Reviewed: May 09, 2013
By eHealthIQ

Japanese researchers have found that a diet rich in soy may not offer protection against stomach cancer. Although the isoflavones found in soy are thought to prevent most cancers, researchers found that people who consumed a lot of soy had the same chance of getting stomach cancer as people whose diets lacked soy.The Japanese study followed a group of people from the 1990s through 2006. Participants were asked to complete a questionnaire regarding their dietary habits, and researchers compared their answers with the number of people who developed stomach cancer. Researchers found no correlation between the amount of soy in a person’s diet and the number of cancer cases. Approximately 85,000 people participated in the study, and around 1,250 of those people developed gastric cancer.The study also found that women who were on hormone replacement therapy had a higher chance of getting stomach cancer if their diets contained a lot of soy. However, researchers could not rule out other risk factors, including smoking, drinking alcohol and a family history of stomach cancer. They also could not say whether any of the participants were infected with the bacterium Helicobacter pylori, which may be a cause of stomach cancer.
[via Reuters]

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