Sarcopenia
Protein intake and physical activity are important stimuli for muscle protein synthesis. A number of expert groups have proposed an increase in dietary protein recommendations for older age groups to 1.0-1.2 g/kg body weight per day.
Key nutrient supplementation in older adults is of interest in the prevention of sarcopenia and frailty, since it is a simple, low-cost treatment approach without major side effects.
High-protein diet
A high-protein diet is low in fat or carbohydrate consumption, and is not the same as a low-carbohydrate diet which may not be food-energy–controlled and may include fat. Example foods in a high-protein diet include lean beef, chicken or poultry, pork, salmon and tuna, eggs, and soy. A diet is considered "high in protein" if daily protein consumption exceeds 15% of total energy intake.