As already mentioned above, the minimum recommended protein requirement for the elderly is 1.2 grams per 1 kg of body weight. For a 70-year-old man weighing 70 kg, this corresponds to 84 g of protein, and for a woman weighing 57 kg, this corresponds to 68.5 g of protein.If you are not interested in minimizing the loss of muscle mass, but in optimal stimulation of muscle protein synthesis, you may need even more protein, for example 1.5 grams per 1 kg of body weight. It is not very difficult to satisfy such a daily need, and with the help of protein powders in the form of shakes, this task is even easier to accomplish. Especially considering problems with appetite and impaired ability to chew solid protein food with age.