**5. Conclusions**

The findings of this scoping review suggest that malnutrition may have high frequency in hospitalized elderly patients, especially those affected by cognitive impairment. The relationship between nutritional status and cognitive impairment is complex and reciprocal. Therefore, an appropriate nutritional status evaluation along the hospitalization, followed by both healthcare and environmental managing strategies is necessary to maintain or improve the patients' nutritional status. A multidisciplinary team is essential to fulfilling the nutritional needs of these patients, and the role of nursing activities is crucial.

**Supplementary Materials:** The following supporting information can be downloaded at: https://www.mdpi.com/article/10.3390/nu14194036/s1, Table S1: Summary of findings.

**Author Contributions:** Conceptualization, M.D.M., G.B.O. and C.N.; methodology, S.D., E.D.S., V.D., and N.G.; data collection: F.R., V.D., G.L., F.F. and A.D.L.; original draft preparation, G.L., C.N. and R.M.A.; writing—review and editing, E.D.S., D.D.N., C.N. and N.G.; supervision, M.D.M., G.B.O. and C.N.; project administration, M.D.M. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** All data are available upon request.

**Conflicts of Interest:** The authors declare no conflict of interest.
