Hu Yaozhong's "breaking the valley" refers to Hu Yaozhong's opposition to food industrialization and modern eating habits, and his advocacy of breaking the valley to restore health and avoid diseases. Bigu refers to a method of drinking only warm boiled water or coix seed water without eating any solid food in a certain period of time to purify the body and strengthen the immune system. According to the theory of traditional Chinese medicine, Hu Yaozhong believes that crossing the valley can eliminate moisture, remove gastrointestinal waste and reduce blood sugar and blood lipid. So that the body can regenerate and repair cells, thus achieving a healthy effect.

Hu Yaozhong's concept of health preservation has been strictly implemented and sought after by many people, especially among white-collar workers with health awareness, Hu Yaozhong has become synonymous with a healthy lifestyle. However, Hu Yaozhong also caused controversy. Many experts pointed out that long-term broken grain is easy to cause health problems, such as gastrointestinal discomfort and acid-base imbalance. In addition, Dr. Hu Yaozhong's method of breaking the valley has also been questioned. Some people think that this is unfounded and traditional, which is not good for health.

The appearance of Hu Yaozhong has aroused people's thinking and concern about eating habits and health, and promoted people's attention to the concept of food safety and health. But when choosing a healthy lifestyle, be rational and be wary of some extreme methods. Prevention first, good eating habits and moderate exercise are effective ways for us to keep healthy. We need to abandon unscientific ideas and keep in good health according to our own situation.