Patients with kidney disease need a low-salt diet, which is analyzed below. Kidney disease includes glomerulonephritis, renal failure and other diseases. The following is an example of kidney failure, kidney failure low salt diet for the following reasons: 1, kidney failure patients with little or no urine, excess water and toxins can not be eliminated from the body, causing water and sodium retention and other symptoms, if patients eat too much salt can aggravate the swelling, which is not conducive to the treatment of kidney disease. 2, if patients with kidney disease eat too much salt, can cause water and sodium retention aggravated by increased blood pressure If patients with kidney disease eat too much salt, it can cause water-sodium retention and increase blood pressure and complications such as cerebral hemorrhage and cerebral infarction. Patients with kidney disease need a low-salt diet, salt intake should be less than 6g per day, or even lower.