Generally speaking, it is calculated by weight: every kilogram of body weight needs to absorb 1 g protein every day, which is enough for body building and muscle building. Suppose your weight is 150 pounds, and you will consume 150 grams of protein every day. 2008-08-30 10:39:23 supplement: I assume that the questioner is a diligent bodybuilder, that is, he will do the gym three times or more a week, with the goal of gaining muscle (building big blocks). If the questioner's goal is not a large amount of exercise, or the amount of exercise/intensity is insufficient, it is necessary to appropriately reduce the intake of protein, otherwise it will be bad for your health to become protein surplus.

Reference: from the fitness instructor

All the information below assumes that you are over 15 years old. Under normal circumstances, you should consume 0.8-1 g of protein per kilogram of body weight every day, but when you do weightlifting training, you can increase it to 1.2-1.5 g of protein per kilogram of body weight. But it should not exceed 1.5 g protein per kg of body weight. You must make sure that you have done proper training in the gym. Therefore, if you weigh 50kg and train hard in the gym, you will consume 50×1.3g of protein. I think the protein content you suggested is for bodybuilders. I think he may be a teenager or a beginner, and he may only go to the gym once a week.