The high blood creatinine indicates that the kidney damage is aggravated, and at this time the dietary contraindications of chronic nephritis are very strict. The amount of sodium ingested by patients with chronic nephritis needs to be strictly controlled to reduce the burden on the kidneys. The actual fact is that you can find a lot of sodium in salt, soy sauce, miso, ketchup, salsa, vinegar, miso, etc. Processed and preserved canned goods also contain a lot of sodium, so try to use natural foods in your daily life. 2, high blood creatinine chronic nephritis patients’ dietary contraindications, the amount of potassium intake also need to pay attention to, too high blood potassium will cause serious heart conduction and contraction abnormalities, and even death. When chronic nephritis kidney function is bad, you should choose less sparse vegetables and fruits with high potassium ion content. Such as mushrooms, amaranth, cauliflower, spinach, cabbage, bamboo shoots, tomatoes, carrots, melon, mustard, pomegranate, loquat, peaches, willow, hard persimmon, oranges, release, etc., and avoid raw vegetables; other such as coffee, strong tea, chicken essence, beef essence, ginseng essence, thick broth, thin salt soy sauce, unsalted soy sauce, half salt, salt substitute, etc., also high in potassium. When cooking, food should be scalded with boiling water, remove the soup and then stir-fry with oil, which can reduce the intake of potassium. In addition, chronic nephritis patients with poor kidney function need to avoid dairy products, soft drinks, colas, yeast (glucose), offal, dried beans, whole b (brown rice, whole wheat bread), eggs, dried fish, etc., should also be careful to avoid eating a lot of food first scalded before cooking, but also to remove some of the phosphorus, so as not to cause skin itching and bone lesions. In addition, the scope of dietary contraindications for chronic nephritis includes the most familiar intake of salt, which should be consumed sparingly and in accordance with medical advice.