Sugar-sweetened beverages (SSBs) are sugary drinks such as sodas, fruit drinks and sweetened teas and are the leading source of added sugars in the American diet. SSBs are also linked to chronic diseases like type 2 diabetes, cardiovascular disease and certain cancers. Despite their well-known health risks, SSB consumption remains high in the United States of America (USA), with 63% of adults consuming them daily, often exceeding the recommended limit of 50 g of added sugar per day. Though efforts to reduce SSB intake through educational programmes, policy initiatives and taxes exist, further research is needed to assess the effectiveness of interventions to reduce SSB consumption in the USA. Understanding the role of behavioural interventions in lowering SSB consumption among adults is critical to address public health strategies.

The proposed scoping review will be conducted in accordance with the Joanna Briggs Institute methodological framework for scoping reviews. An advanced search will be conducted in three electronic databases: PubMed, PsycINFO and Scopus. The reference lists of included studies will also be reviewed to identify additional relevant literature. All identified citations will be compiled in EndNote, and duplicate citations will be eliminated. Identification of studies will occur through the three-step search process: (1) initial screening of studies according to inclusion criteria, (2) eligibility determined through full-text assessment and (3) inclusion of qualified studies meeting the criteria. To be included, studies must report on an existing behavioural intervention to reduce SSB consumption. All studies will undergo screening by two independent reviewers. Any disagreements that arise will be resolved through discussion or with an additional reviewer. A data extraction tool has been developed to extract relevant data from all eligible studies. The extracted data will be presented in a diagrammatic form, alongside a narrative summary, in line with Preferred Reporting Items for Systematic Reviews and Meta-Analysis: extension for Scoping Reviews reporting guidelines.

Ethics approval was not sought as all data will be collected from published literature. We will present our findings at relevant conferences and submit manuscripts for publication in peer-reviewed journals.