Is the low sodium salt “salted salt” or “life-saving salt”?


As the first of the five flavors, salt is an indispensable ingredient in daily diet. However, excessive salt is one of the important causes of high blood pressure. Therefore, the World Health Organization recommends that the intake of salt per day for healthy adults should not exceed 6 grams. According to a survey conducted by the health department, the average daily intake of salt in Beijing is 13.4 grams, more than twice the standard, and up to 16.5 grams in rural areas. In order to curb more and more residents suffering from high blood pressure and other chronic diseases due to eating too much salt, the city has launched a “Limited Salt Action” to distribute a quantitative salt spoon for every household in Beijing. 3 scoops, ie 6 g. After the amount of salt dropped, the food was too light. For the sake of good taste, some families couldn’t help but still go back to salty. How to be healthy and delicious? Under the promotion of the government and the promotion of the media, the general acceptance of low sodium salt.

Low sodium salt composition
The low-sodium salt is made by using iodized salt as a raw material and adding a certain amount of potassium chloride and magnesium sulfate to improve the balance of sodium (Na+), potassium (K+) and magnesium (Mg2+) in the body and prevent hypertension. Therefore, low sodium salt is most suitable for middle-aged and elderly people and patients with hypertension for long-term consumption.
The low sodium salt contains 60% to 70% sodium chloride, and 20% to 30% potassium chloride and 8% to 12% magnesium sulfate. Compared with common salt, the low sodium salt is characterized by a decrease in sodium content and an increase in potassium content. Potassium is resistant to high-sodium blood pressure by dilating blood vessels, reducing vascular resistance, and increasing excretion of urinary sodium. At the same time, the consumption of low-sodium salt can reduce the intake of sodium ions, thereby reducing the risk of diseases such as high blood pressure and heart disease. For patients with hypertension, consumption of low-sodium salt helps maintain the balance of sodium and potassium in the body, which is beneficial for controlling blood pressure. Among the many types of salt, low-sodium salt can reduce sodium and potassium and basically does not reduce saltiness. It is beneficial to prevent high blood pressure and protect cardiovascular and cerebrovascular diseases. It is especially suitable for middle-aged and elderly people with cardiovascular and cerebrovascular diseases.

review the “potassium” element
Then we will understand the “potassium”. The normal blood potassium concentration of the human body is 3.5-5.5 mmol/L. If the blood potassium is too high or too low, it will endanger human health and even life. Then, if we eat low-sodium and high-potassium salts for a long time, will it cause hyperkalemia? The most important part of the potassium-discharging organs is the kidney, which plays a key role in regulating blood potassium concentration. The regulation of the kidneys is that when the potassium intake is insufficient, the kidneys will reduce the excretion of potassium; if the intake is too much, the kidneys will excrete excess potassium. Therefore, if the kidney function is normal, hyperkalemia will hardly occur.

Careful use of patients
Going back to the “friend circle” news, repeatedly mentioned the nephrologist, it is not difficult to imagine that the patients in the Department of Nephrology, most of the kidneys have problems, when the kidney function is not normal, the ability of the kidney to excrete potassium will decline The potassium intake is not easy to discharge, and it is easy to cause hyperkalemia. Most of the cases of emergency hyperkalemia that we receive each year have renal insufficiency. In addition, some patients with cardiovascular disease have long-term oral administration of “potassium-suppressing” diuretics. When potassium in low-sodium salt is superimposed on these drugs, patients may have elevated serum potassium levels. Therefore, patients taking these drugs are not suitable for eating low sodium salts. And blood potassium should be tested regularly.


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