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Can food affect a fecal occult blood test?

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Certain foods can affect the results, so don’t eat these foods for 2-3 days before you take the test:

You may need to stop taking certain medicines 48 hours before the test, too. Ask your doctor about that.

  • Beets
  • Broccoli
  • Cantaloupe
  • Carrots
  • Cauliflower
  • Cucumbers
  • Grapefruit
  • Horseradish
  • Mushrooms
  • Radishes
  • Red meat (especially meat that is cooked rare)
  • Turnips
  • Vitamin C-enriched foods or beverages

From: What Is a Fecal Occult Blood Test? WebMD Medical Reference

SOURCES:

American Cancer Society.

Mayo Clinic.

National Cancer Institute: “Tests to Detect Colorectal Cancer and Polyps.”

Reviewed by Nayana Ambardekar on September 19, 2018

SOURCES:

American Cancer Society.

Mayo Clinic.

National Cancer Institute: “Tests to Detect Colorectal Cancer and Polyps.”

Reviewed by Nayana Ambardekar on September 19, 2018

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What do fecal occult blood test results mean?

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