Building on the Millennium Development Goals, the UN Sustainable Development Goals (SDGs) are the cornerstone of the 2030 Agenda for Sustainable Development, billed by the UN as “an agenda of unprecedented scope and significance.” These seventeen goals are conceived as integrated, indivisible, and as balancing the economic, social and environmental dimensions of sustainable development. To be achieved by 2030, the goals are organized around five core pillars: people, planet, prosperity, peace and partnership. As a member of the SDGs Publishers Compact, Frontiers is committed to advocating the themes represented by the SDGs and accelerating progress to achieve them. Nutrition sits at the heart of the SDGs. In addition to achieving ‘Zero Hunger’ (SDG2), improvements in nutrition are critical to both achieve and reap the benefits of all seventeen global goals. With good nutrition comes improved health and wellbeing (SDG3), enhanced educational and work productivity (SDGs 4 and 8), less poverty (SDG1) and reduced inequalities (SDGs 5 and 10). And with stronger and more sustainable environments, communities, and technologies (SDGs 6, 7, 9, 11-17) improved food security and nutrition will follow. As part of an innovative collection showcasing nutrition in the context of the SDGs, this Research Topic will focus on Sustainable Development Goal 14: Life Below Water.