Compliance to Oral Nutritional Supplements (ONS) in Undernourished Frail Older Adults Living at Home.

In this study, patients are supposed to take Fortimel® Protein, an Oral Nutritional Supplement (ONS) recommended in case of malnutrition once daily during the study period. Three visits will be planned for each patient enrolled in the study (baseline visit, visits of follow-up at 4 weeks and 12 weeks). Phone calls will be regularly organized during one month or three months according to the duration of supplementation. The primary purpose of the OFraDDom study is to assess the compliance with ONS (respect by the patient of the physician's prescription) at the end of the first month. Data regarding the beneficial effects of ONS, or compliance with ONS in frail elderly population, are very limited. The study could complete knowledge about oral nutritional supplementation in the undernourished frail elderly people and help to demonstrate that oral nutritional supplements have benefits on nutritional status and physical performances in frail elderly people.