Normal amount of protein (Dymatize Elite Whey) that the body should be in each day is 1 g per 1 kg body weight such as the weight of 60 kg should receive 60 g of protein per day. For athletes or bodybuilders that desired build bigger muscles, the recommended dose is 1.5 to 2 g per 1 kg body weight or about 2 times the amount of it should receive each day.
This is because the body needs to use more protein to build muscle. This is example of calculations for those who want to build muscle, if 60 kg body weight, it is 90-120 grams of it per day as needed.