*2.2. Search Strategy*

A comprehensive literature search was conducted in MEDLINE via PubMed, Scopus, and Web of Science Core Collection databases from inception to November 2022 by two independent reviewers. Furthermore, we inspected the references of the included studies for relevant articles. The grey literature was also searched for potential records. Finally, we consulted experts in the field of nutrition and hypertension for the provision of eligible studies. We used search terms such as "hypertension", "blood pressure", "DASH diet", and "dietary adherence". The full search string can be found in Supplementary Table S3.
