Patients with kidney failure can eat potatoes, but try not to let patients eat too much potatoes. For patients with renal failure, diet is quite important, usually patients are required to have low protein diet, low fat diet and low purine diet. After the low protein diet, the patient will have nutritional deficiencies, at this time you can give the patient with long-chain starch, potatoes have a relatively high starch content, so you can give patients with renal failure to eat potatoes. If for moderate to severe renal failure patients, due to the weak potassium excretion ability of the kidney, it is easy to cause the patient to develop hyperkalemia. Potato contains high potassium, this time if you give kidney failure patients eat more potatoes, it may lead to hyperkalemia, hyperkalemia for kidney failure patients may be fatal, even lead to cardiac arrest, in this sense, kidney failure patients try not to eat too much potato.