Your diet may often meet all your daily protein requirements. The recommended intake ranges from 56 grams per day for active adults to 126 grams for very active people and athletes.
If your doctor recommended that you increase your caloric intake, or if your schedule forces you to skip meals, you may decide to join the athletes and add some extra protein to your diet with a shake. Most protein drinks are rich in amino acids and glutamine, nutrients that promote muscle recovery after strenuous exercise.