<p><b>BACKGROUND</b></p><p>Rapid population aging has intensified the prevalence of malnutrition, sarcopenia, frailty, and oral dysfunction, significantly affecting healthcare outcomes and quality of life in older adults. A growing body of evidence suggests that integrating rehabilitation, nutrition support, and oral health management-a "triad" approach-may yield superior clinical outcomes compared to isolated interventions.</p><p><b>OBJECTIVE</b></p><p>This narrative review synthesizes existing research on this integrated approach, highlighting its theoretical foundation, clinical implications, and implementation strategies.</p><p><b>RESULTS</b></p><p>Evidence underscores that combined multidisciplinary interventions yield superior outcomes compared to single-domain approaches by effectively improving muscle mass, swallowing function, activities of daily living, and nutritional status.

Recent policy developments, such as those in Japan, endorse this triad approach, reflecting its growing recognition; however, significant barriers to widespread clinical implementation remain.</p><p><b>CONCLUSION</b></p><p>The triad approach is a promising cornerstone of modern geriatric care. Future research should focus on optimizing intervention delivery, overcoming implementation barriers, such as challenges in interdisciplinary coordination, and assessing long-term outcomes to firmly establish this approach within comprehensive care systems as a cornerstone of geriatric healthcare.</p>