What is the recommended daily protein intake for healthy adults?

The recommended daily protein intake for healthy adults is indeed 0.8 grams per kilogram of body weight. This guideline, established by various health organizations, including the World Health Organization (WHO) and the Food and Nutrition Board of the National Academy of Sciences, is based on the average daily amount of protein needed to maintain health in adults.

This value considers the amount necessary to support normal bodily functions, including muscle maintenance, immune function, and the synthesis of enzymes and hormones. It reflects a balance between the protein requirements for various bodily functions and the intake of other nutrients that contribute to overall health.

Higher protein intake, such as those reflected in the other choices, may be recommended for specific populations, such as athletes, older adults, or individuals recovering from certain health conditions, but for the general healthy adult population, 0.8 grams per kilogram serves as an adequate baseline to help prevent deficiency and promote health.