Sodium ion is one of the main ions in mineral water, and mineral water with sodium ion content less than 20mg/L is classified as "low sodium mineral water".
Sodium is the main component of salt in daily life and one of the essential macroelements for human body. The sodium content per kilogram of body weight of adults is about1g. A person must take a certain amount of sodium chloride every day to meet the human body's demand for sodium. Too little sodium intake will make people feel poor appetite and weak limbs, but eating too much is also bad for their health.
According to the standard weight conversion, an adult only needs about 2.5 to 6 grams of salt every day. If he eats too much salt, it will easily lead to incurable diseases such as heart failure and abnormal renal function. The daily intake of adults recommended by the World Health Organization is 1000~2500mg, and should not exceed 6000mg. In this era when the concept of healthy living prevails, less oil and less salt has become a common understanding of the standard of healthy living.
With people's increasing concern about drinking water health, low-sodium mineral water began to enter the public's field of vision. As early as the 1980s, the American Heart Association proposed that low-sodium water with sodium ion below 20mg/L should be given priority as the main drinking water source for heart patients and infants who need to eat a low-salt diet.
First of all, when we buy low-sodium water, we should pay attention to the ingredient label on the back label of mineral water, which indicates the mineral element content of a bottle of mineral water. We only need to choose the sodium content below 20 mg/L. Of course, the lower the sodium content marked on the back label, the more the water meets the standard of low sodium water.