1 doctor weighed in:

Eating tomato can cause occult blood test positive?

1 doctor weighed in
Dr. Gurmukh Singh
Pathology

In brief: Yes

One type of test for occult blood actually tests for peroxidase enzyme and tomatoes have this enzyme.
An other type of test is for human globin protein and is not affected by tomato intake.

In brief: Yes

One type of test for occult blood actually tests for peroxidase enzyme and tomatoes have this enzyme.
An other type of test is for human globin protein and is not affected by tomato intake.
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