This document summarizes a presentation on feeding cities given at the Birmingham Sustainability Forum. It discusses how much food Birmingham needs now and in the future as populations grow. It notes that Birmingham cannot be self-sufficient in food production on its own land and open spaces. While local food growing has benefits, the potential for cities to feed themselves is very small, estimated at around 2% of needs. To feed growing urban populations will require optimizing land use and diets across different places based on their specialties. The document advocates for maximizing cities as biodiversity engines and establishing a Birmingham Food Council to address these challenges through an integrated policy approach.