How long a 1 kg (1000 g) tub lasts depends on your serving size and how many servings you use per day. A common scoop is often 25–35 grams, but the exact amount is printed on the label. For example, if you take 1 scoop of 30 g daily, 1000/30 is about 33 days. If you take 2 scoops (60 g) daily, it lasts about 16–17 days. The strategic point is not “more scoops,” but meeting your protein target efficiently. Many people overshoot their needs, adding unnecessary calories and increasing costs without additional benefit. The best method is to set a daily protein goal, estimate how much you get from food, and use powder only to cover the gap. This approach keeps both nutrition and budget under control and gives you a realistic timeline for how long the product will last.