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Healthy seniors often lose their appetite and wind up also losing weight unintentionally, according to the Association of Mature American Seniors. In fact, the publication, Medical News Today, reports that 15% to 20% of elderly adults may have a condition known as the “anorexia of aging.”
Researchers say that a hormone identified as peptide PYY may be to blame for the loss of appetite among seniors, particularly those over the age of 80. Mary Hickson, professor of dietetics at Plymouth University in the U.K. conducted a recent study indicating some seniors may produce more of the peptide than younger individuals. PYY suppresses appetite.