Kidney disease eat more black food, such as black fungus, black sesame, black beans, black rice and so on. Auricularia auricula can be cold mixed with Auricularia auricula, mixed with onions, or fried with cucumbers. Black beans can be cooked and salted to make pickles. You can also fry in rice vinegar or aged vinegar for a week and eat 15 ~ 20 capsules at dinner every day, and stick to it. Black rice and black sesame can be fried into sesame paste and washed with boiling water. Black rice can also cook porridge.