CLINICAL NUTRITION
AND AGING

Sarcopenia is the loss of muscle mass and strength that occurs as people
age. It is difficult to know exactly how many older people experience sarcopenia, since different clinicians define it differently. According to some
estimates (Sakuma and Yamaguchi, 2012), the prevalence of sarcopenia
ranges from 13 percent to 24 percent in adults over sixty years of age to
more than 50 percent in people eighty and older; other research (Cruz-Jentoft, 2014) indicates the international prevalence of sarcopenia is between
1 and 29 percent in community-dwelling populations, and between 14 and
33 percent in long-term care populations.