I am a beginner in fitness and bought protein powder. I heard that eating too much protein powder is right for kidney is not good. Can you eat protein powder after training and eggs when you are not training? If you exercise, the first thing is to burn body fat. When you have practiced for a period of time, the amount of training is large, and the growth of body muscles already requires you to supplement protein, then start taking it. According to you, you should not be a professional bodybuilder, so you don't have to worry, because the protein powder you consume won't have much influence on your kidneys. It is recommended that you take/kloc-0 once a week. When muscles grow up, they gradually increase or decrease. Remember that muscles are not made of protein. Protein only promotes muscle formation. Muscles are made by practice. People who have just started fitness should not listen to other people's nonsense, especially the creatine, testosterone and protein powder they bought there. High-level fitness athletes can consume tens of thousands of supplements every month. So, it's not necessary.