What is the recommended daily intake of protein for a healthy adult?

The recommended daily intake of protein for a healthy adult is 0.8 grams per kilogram of body weight. This guideline is based on the needs of most people to maintain adequate protein levels for normal body functions, such as the repair and building of tissues, supporting the immune system, and the production of hormones and enzymes.

The 0.8 grams per kilogram recommendation is grounded in research indicating that this amount is sufficient to meet the nutritional needs of the average adult, taking into account factors such as overall health, age, and level of physical activity. For instance, sedentary individuals generally require this amount to maintain their body composition and support daily functions effectively.

Higher protein intakes, such as those mentioned in some of the other options, may be beneficial for specific populations, such as athletes or individuals engaged in intense training, but they are not necessary for the average healthy adult. The excess protein in those cases could lead to unnecessary strain on the kidneys and might not provide additional benefits for general health.