What is good to eat for chronic renal failure?

Written by Pan Wu Shan
Nephrology
Updated on May 06, 2025
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Dietary aspects of chronic kidney failure should be divided into two parts. Firstly, for patients who have not reached the uremic phase and have not undergone dialysis, it is important to maintain a low-salt, low-fat, high-quality low-protein diet, limiting salt intake to no more than three grams per day and avoiding fried and greasy foods. Lower-quality proteins like beans, soybeans, mung beans, etc., should be consumed in smaller quantities. Instead, more animal proteins should be consumed, such as lean meats, eggs, and milk. Once patients have entered the uremic phase and have started dialysis, a low-salt, low-fat, high-quality high-protein diet is necessary, as dialysis requires a significant amount of energy. Additionally, it is crucial to restrict fluid intake; consuming too much salt or water can easily lead to generalized edema and cardiovascular complications.

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Chronic renal failure anemia treatment

Patients with chronic renal failure generally have anemia combined with stage three or above of chronic kidney disease (CKD). When the hemoglobin falls below 100 grams per liter, it is necessary to start treatment to correct anemia. At this point, relevant lab tests should be conducted to check for abnormalities in folate, vitamin B12, ferritin, and serum iron levels, and specific treatments should be administered accordingly. Treatments generally include iron supplements, erythropoiesis-stimulating agents, folate, and vitamin B12 to help correct anemia.

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Can chronic kidney failure CKD5 be cured?

The so-called CKD refers to chronic kidney disease. According to the glomerular filtration rate, CKD is divided into 5 stages, where stage 5 means that the patient's glomerular filtration rate has fallen below 15 milliliters per minute, which is equivalent to uremia. Chronic renal failure is irreversible and cannot be recovered, so it is impossible for patients whose condition has progressed to later stages to recover. Therefore, for such conditions, the only option is to choose renal replacement therapy so that the patient can survive. Renal replacement therapy mainly includes hemodialysis, peritoneal dialysis, or kidney transplantation.

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Precursors of renal failure

The kidneys have a very strong compensatory ability. When kidney function is slightly impaired, many people do not have any uncomfortable symptoms and feel everything is normal. However, if one actively seeks out early signs, it is possible to detect precursors to kidney failure. At this time, if one can go to the hospital in time for routine blood tests, urine tests, and kidney function tests, it is possible to determine if there is kidney failure. The most obvious precursor symptom of kidney failure is usually general fatigue, which many people tend to overlook. This is because there are indeed many reasons that can cause fatigue, especially since many people attribute it to fatigue or stress factors. Additionally, many patients with precursors to kidney failure experience edema, particularly the kind that disappears after rest, so it is especially not taken seriously. Another symptom of kidney failure precursors is a significant increase in the frequency of urination at night, which is also often overlooked.

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What should I do about coughing caused by chronic kidney failure?

Patients with chronic renal failure who experience coughing should first analyze whether it is caused by an infection. In such cases, routine blood tests and chest CT scans are needed to confirm whether there are any infectious lesions in the lungs. Additionally, it should be checked whether the patient has systemic lupus erythematosus, vasculitis, or other conditions, as these diseases can affect the lungs and cause pulmonary lesions leading to coughing. Therefore, treatment should be targeted based on the cause. If the cough is due to an infection, antibiotics are required, but the dosage must be adjusted according to the patient's kidney function. If the cough is due to pulmonary changes caused by a systemic disease, targeted treatment for the systemic disease is needed.

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How to test for chronic renal failure?

The examinations for patients with chronic kidney failure are divided into several aspects: First, it is necessary to confirm the presence of chronic kidney failure and assess its severity. This requires blood tests for kidney function, observing levels of blood creatinine and urea nitrogen, and performing endogenous creatinine clearance tests to determine the degree of kidney failure; Second, it is important to determine whether there are complications associated with kidney failure. Therefore, routine blood tests are necessary to check for renal anemia, blood pressure measurements to observe if there is renal hypertension, and blood tests for electrolytes to check for any electrolyte disorders. These patients also need to have their parathyroid hormone levels checked and undergo iron metabolism tests to provide a basis for further treatment.