Eating protein powder for fitness has no effect on the kidneys! No matter what happens, there are two sides to it. The appearance of fitness protein powder can just prove the development trend of fitness industry. The reason why the popularity of protein powder is so high now is actually inseparable from many bad rumors about protein powder on the Internet. Many people will think that the emergence of protein powder is a magic medicine for muscle speed, but it is not. Now the reason why protein powder is hacked so badly is more because of many keyboard men. They don't insist on the perseverance of fitness training, but they don't want to say that they are lazy and in poor shape, so they attribute the good figure of those fitness muscle men to protein powder, but in fact protein powder is not essential in fitness training. In fact, protein powder has no direct muscle gain effect, because the three processes needed for muscle gain are training, diet and rest. Protein powder is actually a kind of diet, because muscle growth needs protein's participation, and only enough protein can improve the efficiency of muscle building. Compared with protein powder in other foods, the muscle-building effect of protein powder is not different, just because protein in protein powder is more easily absorbed by human body and more convenient to eat.