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    Processed Meat May Up Stomach Cancer

    Researchers Say Findings of Cancer Risk Were Most Consistent for Consumption of Bacon
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    Aug. 1, 2006 -- The more processed meat a person eats, the more likely they may be to develop stomach cancerstomach cancer , according to a new research review.

    But the review, published in the Journal of the National Cancer Institute, doesn't call processed meats a cause of stomach cancer. There's not enough evidence for that, write the researchers.

    Editor's Note: Food Pyramid Replaced

    In June 2011, the USDA replaced the food pyramid with a new plate icon.

    They included Susanna Larsson, MSc. She works in Stockholm, Sweden, at the Karolinska Institute's nutritionnutrition epidemiology division.

    Larsson and colleagues reviewed 15 studies on stomach cancer and processed meats, which included bacon, sausage, hot dogs, salami, ham, and smoked or cured meat.

    The studies were published from 1966 through 2006 and came from Europe and North America and South America.

    The studies included hundreds or, in some cases, thousands of people. They reported how much processed meat they ate.

    Tracking Processed Meat Consumption

    Categories of processed meat consumption varied widely, ranging from less than 1 gram per day to more than 56 daily grams.

    The top of that range is about two servings of meats and beans on the U.S. Agriculture Department's "My Pyramid" food pyramid.

    The studies didn't all use the same standards. So Larsson's team bundled all the data together and did their own analysis.

    They found that higher intake of processed meats was associated with a greater risk of stomach cancer. "Findings were most consistent for bacon consumption," the researchers write.

    Caution on Results

    The researchers, who aren't giving any dietary advice, note that other factors may be involved.

    For instance, the studies didn't adjust for infection with the Helicobacter pylori bacterium.

    Stomach cancer is strongly linked to Helicobacter pylori infection, though most people with Helicobacter pylori infection don't get stomach cancer.

    Also, some groups of people may be more vulnerable than others to stomach cancer due to factors that aren't yet understood, the researchers note.

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