Decline of instrumental activities of daily living is a risk factor for nutritional deterioration in older adults: a prospective cohort study.

Background: The association between functional capacity and the subsequent risk of nutritional deterioration is yet to be understood. The purpose of this study was to elucidate the relationship between functional capacity, comprising instrumental activities of daily living (IADL), intellectual activity, and social function, and future decline in nutritional status.

Methods: The current study is a two-year prospective cohort study.