What is the recommended protein intake for older adults to maintain muscle mass?

Maintaining muscle mass in older adults is critical for overall health, mobility, and reducing the risk of falls and fractures. Research indicates that older adults typically require more protein than the general recommendation of 0.8 grams per kilogram of body weight to effectively support muscle maintenance and growth.

The recommended intake of 1.2 to 2.0 grams of protein per kilogram of body weight per day is based on studies that show this range can help older adults counteract the effects of sarcopenia—a condition characterized by age-related loss of muscle mass and strength. Within this range, protein intake has been shown to promote muscle protein synthesis, enhance strength, and improve overall body composition.

This intake is especially important because older adults often experience changes in metabolism and a decreased sensitivity to protein, which means that a higher protein intake is necessary to achieve the same anabolic effects seen in younger individuals. Furthermore, engaging in resistance training alongside adequate protein intake can offer synergistic benefits that further enhance muscle preservation and growth in this population.

The other options suggest higher protein intake that, while potentially beneficial in certain clinical scenarios, may not be necessary or practical for all older adults and could lead to excess protein consumption without additional benefits. Therefore, the chosen range of