New research adds to growing evidence on the harmful health effects of e-cigarettes: cinnamon, vanilla and butter flavors are among the most toxic Sugar and spices are good to eat, but not so good to inhale or vape. Exposure to flavoring chemicals and liquids from e-cigarettes can cause significant inflammation of monocytes, a type of white blood cell, and many flavoring compounds are also toxic, the worst being those in cinnamon, vanilla, and butter. This is the conclusion of a new study published in the open-access journal Frontiers in Physiology, which has also found that mixing e-cigarette flavors has a much worse effect than exposure to just one. The study adds to growing evidence about... [Read more]