The FDA Wants to Ban Juul by Zachary Siegel Substance E cigarette giant Juul halts sales of fruity flavors as ban looms Column: Studies show how Juul exploited social media to get teens to start vaping Los Angeles Times JUUL: Side effects and health risks New study shows that vaping causes lung and oral cancer and urges immediate government regulation to avoid repeating the tobacco industry's history. A comprehensive analysis of over 100 studies reveals that Can Vaping Cause Lung Cancer? Here's What We Know.