Are there any dietary restrictions associated with the test?
There are no restrictions in terms of foods to avoid when a fecal sample is taken. Alcohol and certain medications such as aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), indomethacin, reserpine, phenylbutazone and corticosteroids may cause gastrointestinal irritation and subsequent bleeding that may be detected by this test. Consult your doctor about whether it is necessary or possible to stop taking such medications temporarily so as to increase the accuracy of the FOB test when the fecal sample is collected.