On 10 November 2016, the Global Alliance for Improved Nutrition (GAIN) together with the Global Health Centre, held an event in Geneva, Switzerland titled, “Protecting our Planet’s Health: Growing Cities, Poor Nutrition, What Can Be Done?”. The event provided a moment to highlight nutrition issues that may be faced by the four billion (and increasing) people in the world who live in cities. Almost a quarter of them live in slums and struggle to access a healthy and diverse diet.