Aging is associated with modifications of protein metabolism, in : particular at skeletal muscle level. This age-related loss of muscle mass could be counteracted by adequate nutritional intakes. Recent observations clearly showed that intake of high-digestible leucine-rich proteins, change in daily protein pattern or specific amino acid supplementation may be beneficial to improve muscle anabolic response in elderly people. However these nutritional strategies have to be tested using large epidemiological studies before being applied to the general aged population.