Bolivian President Evo Morales has been trying to persuade the world that he has no tolerance for cocaine. He says his country's thousands of acres of coca plants are dedicated to uses such as fighting off fatigue and even in whipping up wholesome treats such as coca puff snacks.
As longtime leader of a coca growers union, Morales and other growers say they want to build a healthy market for coca-based products, despite the belief of U.S. officials that most of Bolivia's crop ends up as narcotics
Yet a stubborn problem keeps getting in the way of the president's grand plan: While coca tea is popular, most people seem to find other coca-based food unappetizing. A series of efforts to create foods based on the bitter leaf have flopped.