Is There Diacetyl In E liquid? Vaped Does Vaping Cause Popcorn Lung? Africa Harm Reduction Alliance It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years. Banned Dangerous Vape Ingredients to Avoid in Your Vape Juice Diacetyl & Popcorn Lung EDGE Vaping A Kernel of Truth: Diacetyl, Popcorn Lung and E Liquids Dinner Lady