Skip to main content

Is it Safe to Eat Soy if You Have Breast Cancer?

Safe to Eat Soy for Those With Breast Cancer
Safe to Eat Soy for Those With Breast Cancer
Forest and Kim Starr/CC 3.0

The debate over soy has been a hot topic in cancer studies.  Once thought to protect the body against cancer, soy was later thought to feed estrogen in the body - a major culprit in breast cancer.

So for women in the breast cancer danger zone, what's the verdict on soy?

According to a recent study from the Journal of the American Medical Association, it's safe.  As Deborah Kotz at U.S. News and World Report notes:

"...[T]hose who had the highest intake of soy foods (more than 15 grams of soy protein a day) had about a 30 percent lower death rate and nearly a 30 percent lower rate of recurrence than those who ate the least amount of soy (5 grams or less per day)."

The study factored out issues such as age, body mass, exercise habits, and so forth, and found no benefit from consuming more than 15 grams of soy per day.

The bottom line?  Moderation, once again, is useful.

Source: Soy Food Intake and Breast Cancer Survival


  • SEE 5 years ago

    Soybeans is Genetic modification. China will not Genetic modification their food until they to see what happens to us down the road. The U.S Genetic modification 89% of soybeans. Hello why do you think we have Cancer.

  • Jessika 5 years ago

    SEE, how do you connect GMO soy and cancer? I have done studies and have not found a single shred of evidence that proves GMO foods are any worse than non-GMO. Also, to the author, saying "moderation is useful" is a meaningless thing to say. How much moderation? I would imagine eating soybeans until your stomach explodes is considered too much. Is a spoonful of soymilk once a month too much? How much is too much? I don't eat soy anyway but nowadays it's in everything, you can't get away from it! Even prisoners in Illinois have sued the state because of the harm it caused them.

  • Emylou Lewis 5 years ago

    Thanks for the info!

    I eat a lot of soy, lol.


    Third culture kids examiner
    Seattle stay-at-home moms examiner