Hamer, Oliver ORCID: 0000-0002-9631-0032, Bray, Emma ORCID: 0000-0001-9882-3539, Harris, Catherine ORCID: 0000-0001-7763-830X, Blundell, Amy, Kuroski, Jennifer ORCID: 0000-0002-4406-5127, Schneider, Emma, Watkins, Caroline Leigh ORCID: 0000-0002-9403-3772 and Clegg, Andrew ORCID: 0000-0001-8938-7819 (2023) Psychological interventions for weight reduction and sustained weight reduction in adults with overweight and obesity: a scoping review protocol. BMJ Open .