Because eating rice alone for a long time is easy to cause heavy moisture in the body, steamed bread nourishes the spleen and stomach, and the spleen and stomach are good, and the body is naturally not easy to gain weight. Many people's obesity is due to spleen and stomach weakness or excessive water in the body, which leads to fat ectopic deposition. Rice grows in water, so it is wet and cold, and wheat is a dry land crop, so it is good for the spleen and stomach. Now that living conditions are good, it is suggested that the best diet structure is rice and pasta. The combination of the two can supplement a variety of nutrients more reasonably and evenly. At the same time, it is suggested that rice should eat brown rice properly and steamed bread should also eat whole wheat steamed bread. Because the shells of food crops are rich in some trace elements needed by the human body.