Frailty is a geriatric syndrome leading to physical deterioration including muscle wasting
(sarcopenia) and unintentional weight loss. There are currently no approved therapies for
frailty. Ghrelin is a hormone produced by the stomach that stimulates appetite centers in the
brain. The investigators already know that a single dose of Ghrelin improves food intake
immediately after the dose in frail older people. In this study, the investigators are trying
to find out if repeated daily doses of ghrelin will help frail older people improve food
intake for multiple days in a row.