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Stomach Cancer

Learn About Stomach Cancer

How Preventable Is Stomach Cancer?

AICR estimates that if Americans cut out processed meat, did not drink excessive amounts of alcohol and stayed a healthy weight, we could cut the number of cases of stomach cancer that occur in the U.S. by 15 percent.

This means that if we all ate meals featuring more plant foods (especially fruits and non-starchy vegetables) roughly 4,000 cases every year would never have to happen (based on 2016 incidence data).


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What Are Stomach Cancer’s Major Risk Factors?

Diet: Processed meat increases risk; these meats include bacon, hot dogs and sausage.

Alcohol: Drinking 3 or more alcoholic drinks per day increases risk.

Age: Most cases are diagnosed in people over 50.

H pylori Infection: The bacterium Heliobacter pylori (H plyori) increases risk for stomach cancer, as it damages the stomach lining.

Smoking: Tobacco use increases risk of stomach cancer and many other cancers.

How Common Is Stomach Cancer?

Stomach cancer (also known as gastric cancer) is not as common in the United States as it is the developing world. Approximately 26,370 cases of stomach cancer occur in the U.S. each year.


Focus On The Risk Factors You Control

A Menu for
Stomach Cancer Prevention

New American Plate

Learn about AICR’s simple, visual, award-winning approach to meal planning that helps you lower your cancer risk – and your weight.

Foods That Fight CancerTM

AICR’s new web resource keeps you up-to-date about the latest research on foods that belong at the center of your New American Plate.

To lower your risk of stomach cancer, focus on replacing processed meats with healthy choices, drinking moderate amounts of alcohol -- if any -- and eating a diet high in plant foods to help you stay a healthy weight.

Eat More:

  • Vegetables: Choose non-starchy options like tomatoes, leafy green, peppers and carrots. Allium vegetables (onions, garlic, leeks, chives, scallions) are specifically linked to lower risk for stomach cancer.
  • Fruits: Eat a variety of fruits, whether fresh or frozen. Limit juices to 1 cup or less per day.

Eat Less:

Processed Meats: Hot dogs, bacon, and packaged deli meats are all considered processed meat.

Note: The effect of salt-preserved foods on stomach cancer risk is more pronounced among those with H pylori infection. If you suffer from stomach ulcers, discuss getting tested for H pylori infection with your healthcare provider; treatment is available.)

A good rule of thumb:

Always fill at least 2/3 of your plate with plant foods, and let animal foods (meat and dairy) take up the rest.


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What the Research Shows

Food, Nutrition, Physical Activity, And Cancer Of The Stomach

Source: Food, Nutrition, Physical Activity, and the Prevention of Cancer: a Global Perspective, 2007

Strength of Current Evidence

Decreases Risk
Increases Risk
Probable Effect on Risk:

Non-starchy vegetables

Allium vegetables



Salted & salty foods

What’s the Link?

Diets High in Non-Starchy Vegetables LOWER Stomach Cancer Risk

  • Non-starchy vegetables (read: NOT potatoes, corn, etc.) contain a range of components that could contribute to a protective effect, including fiber, carotenoids, flavonoids, folate, and many more.

Diets High in Allium Vegetables LOWER Stomach Cancer Risk

  • Onions, garlic, chives, leeks and scallions contain allyl-sulfur compounds, which are much studied for their anti-cancer potential.
  • In laboratory studies, these substances seem to help usher potential dietary carcinogens out of the body before they can do any harm.

Diets High in Fruits LOWER Stomach Cancer Risk

Like vegetables, fruits contain a range of compounds that have been shown to deactivate carcinogens and help the body protect itself from cancer in other ways.

Diets High in Salt and Salty Foods RAISE Risk for Stomach Cancer

Salt, especially when accompanied by H pylori bacteria, irritates the lining of the stomach over time in ways that make the cancer process more likely.


    Today, your chances for overcoming stomach cancer and returning to an active and full live are the best they've ever been.

    But throughout your treatment, and after its over, you will face many everyday questions. AICR can help.

    AICR’s CancerResource: A Program for Those Living with Cancer is a free kit of information specifically for the newly diagnosed cancer patient.


    There are now more stomach cancer survivors in the US than ever before, living longer, healthier lives than ever before.

    See below for selections from AICR's CancerResource. Or read the complete CancerResource flipping book online.




    More AICR Materials for Sitename Cancer Survivors

    In-depth brochures on cancer survivorship; read online or order a free copy.

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    Stomach cancer is too often a deadly disease, yet the choices we make every day could prevent about half of the cases that occur each year.  

    Your support for AICR's cancer research, survivorship, and education programs will help us get one step closer to preventing stomach cancer and saving lives.

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