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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Niacin Cause False Positive For Nicotine On A Drug Test Report?

My GF recently tested positive for nicotine. She hasn t been a smoker for a long, long time.... She does eat a diet that is heavily vegetarian. She also takes a bunch of vitamins... including niacin and B complex. Can that NIACIN be the cause of her false positive ? YYYY@YYYY
Thu, 7 Jun 2018
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Pathologist and Microbiologist,  's  Response
Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.

Certain foods like broccoli, cabbage, mustard, garlic, radishes, almonds and horseradish causes false positive nicotine.

Your girlfriend was taking vegatarian diet. This might be responsible for positive nicotine test.

Hope I have answered your query. Let me know if I can assist you further.
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Does Niacin Cause False Positive For Nicotine On A Drug Test Report?

Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Certain foods like broccoli, cabbage, mustard, garlic, radishes, almonds and horseradish causes false positive nicotine. Your girlfriend was taking vegatarian diet. This might be responsible for positive nicotine test. Hope I have answered your query. Let me know if I can assist you further.