There is not much difference. A person's daily protein content is not much, which is about 1 kg body weight and 0.8 g protein. For ordinary people who eat a normal diet, this is not difficult to achieve. If you eat eggs, milk, meat and tofu every day, you will never lack protein. And eating protein powder is not worth it, and the cost performance is very low. Why? Because eating an egg can supplement 6 grams of protein, and drinking a cup of 250 ml of milk can supplement 8 grams of protein. While eating 100g chicken, pork stuffing and tofu supplemented 19, 17 and 8g protein respectively. If you can't keep fit by eating protein powder, take it once a day 10g, and its protein content is 80%, that is, 8g. It is equivalent to protein drinking a glass of milk, but the price is several times that of milk. Therefore, reasonable diet and fitness are the best fitness methods. Right?