Sustain is a health promotion charity and think-and-do network with a vision to create food systems that nourish people and nurture the planet. We know that transitioning to a healthier, more sustainable and equitable food system requires good policy and practice, underpinned by a strong evidence base and inspiring examples that empower communities and governments to work collectively towards a better food future for all. We give people, councils, and organisations the tools they need to help them become empowered food citizens, supporting healthy communities, people and ecosystems.