Diacetyl notice! : r Vaping A Warm, Buttery Flavor and a Risk of Irreversible Lung Damage Can vaping cause cancer? The evidence suggests it might. The Washington Post Does Nasty Juice Contain Diacetyl? A Safety Guide for Vapers Vape4World Yes, vaping is toxic. A U.S. teen developed "popcorn lung" after secretly vaping for three years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the condition scars the lungs' tiniest E Cigarette Lawsuit Resulting From Diacetyl Exposure TruLaw