Protein powder helps muscle growth. For advanced people, it should be eaten every day. For beginners, it is not needed for the time being, because eating more meat and eggs in the daily diet is enough. When there are more and more muscles, the daily diet is not enough, because people's daily intake of protein is directly proportional to their weight. The stronger they are, the more protein they need to eat to maintain their muscle circumference. At this time, it is not enough to rely on daily food.

Only practicing strength does not increase muscle, so we should use the method of high weight and low frequency, that is, a group can only lift the weight three or four times, and the medium weight is just to increase muscle.