Originally Posted by
Arty13
Don't know about the weed issue, but Costco poppyseed muffins will give a false positive for opiates. I've heard this thousand poppy seed ingestion anecdote before, and it is very much a falsehood. Happened to a good friend at my former carrier. He had to go in and be retested and also had to be examined by a doctor for evidence of needle usage.
This is bad info. The FAA changed this threshold years ago. Poppyseeds will not give a false positive anymore.