Regardless of what kind of chocolate you prefer, you should know the harsh truth about its origins.
Cacao, the plant from which is produced the first cocoa and then chocolate, is being picked by minor children, usually so poor that they have never had the chance to taste chocolate in their life.
These children work illegally as pickers in Latin American, the Ivory Coast and other countries where this plant is grown. Here is a documentary that shows the dark side of the chocolate: