There are no obvious contraindications for chronic heart failure, the main thing is the management of their salt and water intake, it is recommended that patients with chronic heart failure have a low-salt and low-fat diet. Chronic heart failure patients are mainly characterized by water and sodium retention, which is often referred to as edema. Therefore, it is necessary to monitor body weight on a daily basis and record one’s water intake and urine excretion in order to achieve a balance in terms of diet. Because chronic heart failure patients will use diuretics for a long time, coupled with the need to strictly control salt intake, patients may experience low sodium or high sodium which may lead to aggravation of edema. Patients are advised to go to the hospital regularly for electrolyte review and to regulate the use of diuretics under the guidance of the doctor to avoid low or high sodium.