In this case, the best way is actually to say that you'd better not go to dinner with him for the first time. You must not eat it because you know it's not delicious. Do not be afraid of his anger. He may get angry once or twice, but he will get used to it after a long time. The second is through his friends. We should instill this healthy idea in him and don't let him eat these heavy-flavored foods. Third, if there is an opportunity, let him see some squid eat heavy food. Some sick people make him afraid of this, and gradually he will change this habit. The fourth is to recuperate the body. Since you are a doctor, you must go. Help him feel the pulse, identify some physical problems, and remove some physical problems, which may also change some living habits.