Obesity is still increasing in prevalence in almost all countries and is an important risk factor for poor health and mortality. The current approach to obesity prevention is failing despite many piecemeal efforts, recommendations, and calls to action. This Commission following on from two Lancet Series on obesity looks at obesity in a much wider context of common underlying societal and political drivers for malnutrition in all its forms and climate change. The Commission urges a radical rethink of business models, food systems, civil society involvement, and national and international governance to address The Global Syndemic of Obesity, Undernutrition, and Climate Change. A holistic effort to reorient human systems to achieve better human and planetary health is our most important and urgent challenge.
