In the U.S., soda taxes haven't had the impact activists had hoped for, but globally it's a different story.
Each piece of Wrigley's new "Alert Energy" gum contains a half-cup of coffee's worth of caffeine.
Energy drink-related hospital visits have doubled between 2007 and 2011, but the caffeine isn't entirely to blame for the injuries.
Health Canada has imposed new requirements on energy drinks, which must now disclose their ingredients on their labels and limit their caffeine levels.
Do you really know what's in dietary supplements? New legislation could tighten regulations on what is food and what is supplement.