Food waste is one of the most discussed subjects within food production in recent years. Throwing food away at a time when almost 900 million humans live in hunger and it is becoming more and more clear that food production draws on limited resources of eg. agricultural land and fresh water and is one of the important contributors to climate change, simply seems wrong. Here we discuss three questions in relation of this almost self-evident fact: (1) different definitions of food waste and the difficulties in reaching a global definition, how desirable it might be; (2) different ways of preventing food waste from the individual to the international level and the importance of examining the values behind different strategies; and (3) ethical challenges in relation to food waste and the opportunity to utilize the indignation that many feel when confronted with food waste to re-think the deeper relationship between humans and nature.