For this special Sustainability issue of Medical Writing, the editorial team at Veterinary Medical Writing has decided to focus on One Health. As the global society adjusts to adopting a sustainable lifestyle, whether voluntarily or kicking and screaming, assuming a One Health mindset must go hand-in-hand with sustainable living. One Health and sustainable practice are already being incorporated into veterinary school curricula. The clinicians of the near future and many currently in practice are using One Health Medicine to help decision-making and guide sustainable choices for themselves and their animal-owning clients. Medical writers are ideally positioned to propagate One Health thinking; however, to do this, they must incorporate it into their own practice and be comfortable with communicating what is, for many, an abstract concept. Louisa Marcombes (editor), Jennifer Bell (editor)