In plain language and with moving examples, Hans K. Biesalski describes how hidden hunger affects human health long before malnutrition becomes obvious. Worldwide, over one third of deaths among children under 5 years of age is associated with malnutrition. As poverty is the main reason for hidden hunger, addressing this dire challenge requires long-term policies. Land-grabbing and climate change seriously counteract a lot of efforts to overcome hidden hunger. Investment in agriculture and in particular in small-scale farmers to improve subsistence farming are among the approaches suggested to reach a sustainable solution.