Chicken kidney, also known as chicken kidney, is an organ of chicken, belonging to the urinary system, which is responsible for filtering impurities in blood, maintaining the balance between body fluids and electrolytes, and finally discharging urine from the body through subsequent pipes; At the same time, it also has endocrine function of regulating blood pressure. But in daily life, it is the size of chestnut, the color is like pig liver, and the surface of chicken kidney is smooth, which can be divided into upper and lower ends, front and rear sides, and inner and outer edges. The main edible function of chicken kidney is to treat dizziness, dry throat, tinnitus, deafness, night sweats and other diseases. Has extremely high health-care functions of nourishing yin and strengthening yang. Eating chicken kidney with watercress can achieve the health care effects of clearing away heat, resolving food stagnation, containing crude fiber, moistening intestines and relaxing bowels.