What is said upstairs is not entirely correct. Hello, the protein content of chicken breast is about 30%, and half a catty of chicken breast is 250g. Therefore, the content of half a catty of chicken breast is 75g protein. A person who gains muscle needs at least 1g protein for 1 kg body weight. If you are 150 kg, you need to take 150g protein every day to gain muscle. 1 ...