The health and nutrition survey databases of China, the United States, and Korea are all focused on national health and nutrition surveillance, which have become important public resources for data mining in recent years. The construction status, brief histories, sampling methods, and survey contents of the three health and nutrition survey databases were compared and analyzed, it was found that the main difference lies in the types of study design, with cohort study used in China, cross-sectional survey used in both the United States and Korea. Then, the database-based publication volume and research hotspots were visually analyzed and found that the upward trend is more prominent in the United States, the research hotspots of the three databases were consistent with the themes of the health and nutrition survey. Finally, the construction and application of the databases were discussed and recommendations were made, which was expected to provide a path for relevant researches and better encourage the generation of scientific evidence.
