The recommended number of protein shakes per day depends on your individual protein needs, activity level, and diet, but general guidelines suggest:

• For most people, 1 to 2 protein shakes per day is sufficient and safe. This amount helps supplement protein intake without replacing whole foods, which should remain the primary source of nutrients

• If you are moderately active or trying to build muscle, 2 shakes per day can be appropriate to meet higher protein demands

• For very active individuals, such as those with multiple workouts per day or intense training sessions, up to 3 shakes per day may be suitable to support recovery and muscle growth

• If you have a lower protein requirement or consume adequate protein from whole foods, one shake per day or even none may be enough

• The key is to focus on total daily protein intake, which varies by body weight and activity level (generally 0.8g/kg for sedentary adults, up to 1.3-2.0g/kg for athletes), rather than just the number of shakes

• Protein shakes should be considered supplements, not meal replacements, and should complement a balanced diet rich in whole food sources of protein

In summary, most people should limit themselves to one or two protein shakes daily, with up to three shakes reserved for highly active individuals, ensuring that the majority of protein comes from whole foods for balanced nutrition