Drinking a protein shake every day is not automatically “bad,” but it should be justified by need. If you consistently struggle to meet your protein target through food, a daily serving can be a practical solution. If your diet already provides enough protein, adding powder daily may simply increase calories and cost without clear benefit. Ingredient quality becomes more important with daily use—some products contain sweeteners, thickeners, or higher sodium, and individual tolerance varies. A smart approach is to plan weekly: use powder on busy days, rely on whole foods when you can. If you notice bloating, acne flare-ups (sometimes reported with whey in certain individuals), or digestive discomfort, adjust the type (isolate vs concentrate, plant-based) or reduce frequency. People with kidney disease should avoid routine use without medical advice.