Ga Yao Zi is a Northeast dialect, and Ga (g m) = Qie, which means kidney, the main excretory organ of human or animal. The surface of kidney is smooth, which can be divided into upper and lower ends, front and back sides, and inner and outer edges. Ming and Sun Yikui's "The Medical Purpose is Redundant and Difficult to Get Justice": "The two kidneys, that is, the two kidneys, are all wrapped in lipid membranes."

The stem of Gayaozi comes from a folk scam. There is a criminal gang that steals human organs, cuts off people's kidneys and sells them on the black market. This plot has also appeared in many film and television works, so Gayaozi has become a stem.

The role of the kidney:

1, human body fluids have a certain pH, which is an important basis for maintaining human life activities.

2. Under normal diet, the human body produces a large amount of acidic substances and a small amount of alkaline substances.

The kidneys that people often mention are the kidneys of animals, and the kidneys of pigs and sheep are the ingredients of traditional China cuisine. Replacing waist slices with pork liver is called fried pork liver. The raw materials are marinated with lobster sauce, which is called fried lobster sauce.