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The problems related to the process of industrialisation such as biodiversity depletion, climate change and a worsening of health and living conditions, especially but not only in developing countries, intensify. Therefore, there is an increasing need to search for integrated solutions to make development more sustainable. The United Nations has acknowledged the problem and approved the “2030 Agenda for Sustainable Development”. On 1st January 2016, the 17 Sustainable Development Goals (SDGs) of the Agenda officially came into force. These goals cover the three dimensions of sustainable development: economic growth, social inclusion and environmental protection. The Encyclopedia of the UN Sustainable Development Goals comprehensively addresses the SDGs in an integrated way. It encompasses 17 volumes, each devoted to one of the 17 SDGs. This volume addresses SDG 2, namely "End hunger, achieve food security and improved nutrition and promote sustainable agriculture" and contains the description of a range of related terms, to allow for a better understanding and foster knowledge. Our planet produces enough food to feed everyone. Malnutrition and hunger are the result of inappropriate food production processes, bad governance and injustice. SDG 2 seeks to guarantee quality and nutritious food to ensure healthy life by adopting a holistic approach that involves various actions targeting different actors, technologies, policies and programs. These initiatives have to face challenges coming from extensive environmental degradation, loss of biodiversity and the interrelated effects of climate change. Concretely, the defined targets are: End hunger and ensure access by all people, in particular the poor and people in vulnerable situations, including infants, to safe, nutritious and sufficient food all year round End all forms of malnutrition, including achieving the internationally agreed targets on stunting and wasting