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 Fruit flavored vapes just cleared a major hurdle with the FDA. The Food and Drug Administration authorizing the marketing of fruit flavored e cigarettes, marking the first time it has approved this category of vaping Diacetyl notice! : r Vaping ARRO Ultra Vape Review: Plant Powered and Diacetyl Free?