On the show "Myth Busters" this was one of the "myths" they put to the test. The one guy ate a bunch of lemon poppy seed muffins and the next day he showed positive. It took a few days more for it to show clean again. So it is true. You can show positive from eating poppy seeds. On the other side, you would really have to eat a lot of them!! You may be able to pull up the episode in the Myth Busters Archive. It was interesting to say the least. Like I said though, the guy really pigged out on the muffins, at least 10 - 12 of them. He was stuffed but he did test positive.
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