Bile is a digestive fluid that has the effect of emulsifying fats but does not contain digestive enzymes. Bile-free feces are feces that do not contain bile and bile pigments. alpha 1 antitrypsin deficiency liver disease hereditary alpha 1 antitrypsin deficiency in newborns occurs within the first month of life, cholestatic jaundice, the child’s weight gain is slow, lethargy, irritability, and the appearance of bile-free feces. Avoid eating hot, greasy, rough and scummy food, tobacco, alcohol and coffee. Eat more foods that have the function of clearing intestinal heat, moisturizing and nourishing the mucous membrane, laxative and hemostatic, such as raw pear juice, lotus root juice, water chestnut juice, rutabaga juice, celery juice, carrot, white radish (cooked), bitter gourd, eggplant, cucumber, spinach, cabbage, cabbage, egg yolks, apples, figs, bananas, black sesame seeds, pecan meat, white fungus, and so on.