Popcorn Lung: The Deadly Secret in Your Vape! Did you know that the sweet, tempting flavor in your e liquid could be hiding a chemical called Diacetyl? This chemical, which tastes Vaping harms your health Cancer Institute NSW Vapes and Popcorn Lungs: A Doctor's Honest Take on E Cigarettes Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Can vaping damage your lungs? What we do (and don't) know Harvard Health