Respected for their knowledge of animal health and disease, veterinarians safeguard animal health and welfare and, where applicable, the productivity of animals under their care. With the threats posed by climate change, the veterinary profession must use this privilege to support the whole spectrum of the human-animal-environmental interface to shift towards the objectives outlined in the United Nations 17 Sustainable Development Goals. This article provides medical writers with an overview of the challenges specific to veterinary sustainability, both in supporting others to make sustainable choices and improving sustainable veterinary practice. A veterinary-led initiative that produces sustainability guidelines for the veterinary profession is also showcased as a model of information-sharing and engagement. This is discussed against a food security and sustainability background, likely unfamiliar territory for the medical communicationsprofessional