Instead of praising the growing business of biodynamic fuel we here show that the green alternative isn't really as world-saving as we might have believed. In order to produce one single car tank of biofuel you need the same amount of crops (corn and other grains) that would feed 365 people for a day. More than 850 million people suffer from malnutrition in the world. If 1,64 million people wouldn't fuel their car with biofuel once every week there could be enough food for the starving people.