https://www.motherjones.... this was an interesting read. I didn't know that poppy seed can make you false positive for opiates...which now make sense cos poppy!
Poppy seed bagels too
this happened to my mom when i was a teenager, she ate a poppy seed bagel before taking a work drug test!
I think that was in a Seinfeld episode too
It takes a lot to throw a modern test.