Malnutrition and dehydration in old person are common and are associated with frailty, sarcopenia and poor health outcomes. Relationship between the amounts of energy and water intake and physical function was examined in care home residents. Each amount was positively associated with body weight, BMI, the ability to reach the restroom timely and physical activity, and negatively associated with care-needs levels under long-term care insulance and the rate to use diaper. Thus, nutrition and hydration play an important role in preserving physical function and independence in care home residents
