Danger rating: 3
Potential side effects: Addiction, corroded teeth

When Coca-Cola was first created it contained coca leaves (the plant the makes cocaine) and kola nut. But, ironically, Coke is now is more like drinking heroin. After the body experiences the massive amounts of sugar and the resulting insulin spike, dopamine is released, mimicking heroin. While you're getting high off of dopamine and caffeine, Orthophosphoric Acid is corroding the teeth and bone, sodium benzoate is deactivating DNA, and somewhere, someone smart is using coke to clean their toliet. Earlier this year, a New Zealand woman who drank up to 10 liters of Coke a day died from cardiac arrest. This was after she'd had her teeth removed a few years before because of tooth decay caused by Coke.