Protein Nutrition in the Aging Population
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A major health concern for older adults is the age-related sarcopenia, or the loss of muscle mass and strength, as it reduces functional capacity and leads to disability and loss of autonomy. Insufficient protein intake is one of many contributing factors of sarcopenia and involuntary weight loss, predisposing to frailty. Not only is total protein intake important to consider with regards to currently debated recommendations, but protein quality, digestibility and daily distribution might be crucial to fully stimulate an anabolic response.
Physiological modifications due to aging combined to a sedentary lifestyle contribute to create a situation of anabolic resistance whereby older persons do not fully respond to dietary anabolic stimuli such as insulin and amino acids. This presentation will review the current state of knowledge on protein intake in the elderly population and explore potential strategies to optimize the postprandial anabolic response and attenuate muscle loss as we age.
Stéphanie Chevalier, PhD
Assistant Professor, Department of Medicine, McGill University
Medical Scientist, MUHC- Research Institute
Crabtree Nutrition Laboratories
*** Original Source: CNS Regional Conference - Advances in Protein Nutrition Across the Lifespan - January 10, 2015
Last Updated: May 11, 2015
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