On 7 March 2023, the open-access book Our Future Proteins has been launched. In this book, 100+ experts present their views on the transition to sustainable protein production and consumption. Their visions cover a wide range of transition directions, from radically rethinking protein production systems to a pragmatic approach balancing global and local supply chains. By allowing a diversity of (sometimes divergent) perspectives, the book provides a snapshot of a dynamic transition in progress. Four of the editors are associated with Wageningen University & Research.