If I asked you to eat a substance that glowed in the dark, would you hesitate? What if I told you...many of us regularly do just that, without ever realizing it? Or feed it to our children? Or use it as a treat for fur babies? Since few of us eat in the dark, and even fewer (I imagine) eat with a laser pointer at the ready, it's probably not likely that many have experienced it. But yes, peanut butter glows in the dark! Weird.
Check out this educational video for details (or proof, if you are the type that needs proof).