Consuming low-sodium salt has certain benefits, which can avoid abnormal blood pressure due to excessive salt intake, but patients with renal insufficiency are not suitable for eating low-sodium salt. Low-sodium salt is a kind of healthy salt, compared with ordinary sodium salt, the content of sodium ions is lower, potassium ions will be higher, it can effectively reduce blood pressure and other cardiovascular disease risk. Low sodium salt is suitable for middle-aged and elderly people and patients suffering from high blood pressure and heart disease. Low-sodium salt is high in potassium and low in sodium, the intake of potassium ions is relatively increased, and patients with poor renal function, too much potassium intake may lead to more serious consequences, some will have side effects such as cardiac arrhythmia, and in severe cases, there will also be heart failure, so there are benefits and disadvantages of eating low-sodium salt, and you need to combine with your own situation to use it reasonably.