Objectives: We investigated the impact of providing care for grandchildren on chewing difficulty among older adults to provide evidence for oral health promotion and social support policies. Methods: Data from 8,499 participants aged 65 years and older from the 2023 Survey of Older Koreans were analyzed to elucidate relationships among participant characteristics, caregiving status, and chewing difficulty. Results: Chewing difficulty was significantly higher among late-stage elderly individuals (46.9%) than among early stage elderly individuals (20.7%) and among those in the lowest income quintile (45.2%) than among those in the highest income quintile (17.2%) (p<0.05). Functional limitations and chronic diseases respectively increased the prevalence of chewing difficulty by 2.3 and 2.8 fold (p<0.05). While univariate analysis showed a lower prevalence of chewing difficulty among elderly care providers, the statistical significance disappeared in the final model (Model 3) after controlling for age and functional status, suggesting a “healthy caregiver effect,” where individuals in superior physical conditions selectively participate in caregiving. Conclusions: Periodic oral health monitoring of elderly caregivers is essential to protect their health rights. Tailored oral health education should be implemented within social support frameworks to address gaps in caregiving and promote healthy social participation.