Glycemic index (GI) is a research hotspot in the field of medicine and food. At present, no scholar has systematically analyzed the academic research status in this field. In order to make more researchers be familiar with the research directions and progresses of GI, the academic literatures which from Web of Science (WOS) and CNKI database were selected from 1992 to 2022 as data samples. 1 389 foreign literatures and 365 Chinese literatures were analyzed by bibliometric method, and visualized by means of CiteSpace, VOSviewer, Excel, and other analysis software. A general overview of the current research situation can be obtained according to the visual analysis of authors, dispatch agencies, journals, co-occurrence network, cluster, emergence graph of keywords. The results showed that the main research directions were the factors affecting GI, the effect of low GI diet on patients with chronic diseases, and the development of low GI food. The research on GI has a history of more than 40 years. Foreign literature tends to be basic research while domestic literature focuses on applied research. Foreign research is stronger than research in China in terms of research depth, academic influence and team strength, but the future of GI research in China is optimistic. In the future researches on GI, research institutions and teams should strengthen cross-regional, cross-border, and interdisciplinary cooperation and exchanges, and increase high-quality evidence support for GI in related fields.
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