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A member asked:
Can vitamin b2 cause a false positive on a drug test?
A doctor has provided 1 answer
No: I thought this was a strange question, but in researching it found out that this is claimed on some websites. However, I am quite certain that b2 does not cause a false positive on drug tests. It can make your urine bright yellow & some who drink a lot of fluids to dilute their urine before a test will sometimes take b2 so the urine looks yellow rather than clear. Will not cause false positive.
Answered 10/24/2017
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