I have read articles and have listened to news reports about workers in plants getting sick from inhaling the popcorn flavoring. I have yet to hear anything from the general public about getting sick from this. My 11 yr old son either has an allergy to this flavoring or it simply makes him sick. I first thought it was just popcorn; but, after process of elimination, I have discovered it is the diacetyl, It causes him to cough and then he throws up. It takes him about 24-48hours to get over it. The healthy balance smart popcorn does not make him sick . Now, that the Orville Redenbacher brand does not have diacetyl in it; he can eat it without getting sick. I would like to know more about what other products have diacetyl in it. We watch labels closely; but the labels have never mentioned "diacetyl", all it ever said was artificial flavoring. Thanks