Abstract: Objective: To retrieve, appraise, and summarize the evidence on the management of abnormal eating behaviors in patients with dementia, in order to provide a reference for clinical practice. Methods: Based on the "5S" evidence model, the evidence related to the management of abnormal eating behaviors in dementia patients was systematically retrieved from domestic and foreign databases, including clinical decisions, recommended practices, guidelines, evidence summaries, systematic reviews/Meta-analyses and expert consensus. The search period was from the establishment of the database to October 23, 2025. The quality assessment of the literature and evidence integration were independently conducted by researchers. Results: A total of 25 articles were included, including 1 clinical decision, 6 recommended practices, 2 guidelines, 3 evidence summaries, 10 systematic reviews, and 3 expert consensuses. The 29 pieces of evidence were summarized from six aspects: assessment and monitoring, adjustment of dining environment, nutrition and diet, management of the eating process, training and education, and support and decision-making. Conclusion: This study summarizes the evidence for managing abnormal eating behaviors in patients with dementia, providing a foundation for clinical healthcare professionals to develop management and intervention plans, improve care quality.

Key words: dementia; abnormal eating behavior; evidence summary; evidence-based nursing