Steamed bread is a kind of grain, because it is easily absorbed by the human body after fermentation in the production process. Moreover, steamed bread with suitable hardness has the function of invigorating the stomach, contains a lot of carbohydrates and sugars, and can be used as a staple food. However, due to its hard texture and difficulty in swallowing, it is easy to cause gastrointestinal bleeding in patients with esophageal varices. It is impossible for normal people to gain weight by controlling their daily intake. On the contrary, because protein and sugar can be converted into fat, basically all foods that can produce calories are eaten.