Poison center warns of JUUL use; 1 pod has 5% nicotine or 1 pack of 20 cigarettes FDA warns Juul, says it marketed vapes as less harmful than regular cigarettes without agency authorization The Washington Post DYKOne Juul pod contains as much nicotine as a pack of cigarettes. Side effects include increased heart rate and blood pressure, lung disease, chronic bronchitis and insulin resistance leading to type 2 FDA orders Juul e cigarettes off the market over safety concerns The Washington Post