Sarcopenia is a common geriatric condition.

The sarcopenic phenotype is characterized by an absolute or relative reduction of the lean mass that can lead to an increased risk of fractures, motor disabilities and loss of independence for men and women. The etiology of lean mass loss is multi factorial, however seniors over the age of about 60 lose 1-2% of the lean mass per year.

Food proteins are the most important macronutrient for muscle health. Numerous articles state that the loss of lean body mass in the elderly can be stopped or even reversed by the increase in daily protein intake. Animal proteins provide more essential amino acids than plant protein sources that can stimulate muscle protein synthesis. Vitamin D supplementation and weight change are important mediators.

A higher protein intake together with vitamin D supplementation and weight maintenance offer a reliable strategy to preserve lean mass in the elderly and prevent sarcopenia as reported in a study published in the Journal of Nutritional Science.

 

Isanejad, Masoud, et al. “Association of protein intake with the change of lean mass among elderly women: the Osteoporosis Risk Factor and Prevention–Fracture Prevention Study (OSTPRE-FPS).” Journal of Nutritional Science 4 (2015).