Is sodium in the nutrition facts list of food beneficial to the human body

Proper intake of sodium in the nutrition facts list is beneficial to the human body.

Sodium is one of the important components in human muscle tissue and nerve tissue, and is an important inorganic element in the human body. Sodium is an extracellular fluid.

The main positively charged ions are involved in water metabolism, ensuring the balance of water in the body, and regulating water and osmotic pressure in the body.

Maintain the balance of acids and bases in the body.

In addition, sodium is a component of pancreatic juice, bile, sweat and tears, and sodium is responsible for energy production and utilization, muscle exercise, and cardiovascular.

Function, energy metabolism are related, sodium also plays an important role in maintaining normal blood pressure and enhancing neuromuscular excitability.

The sodium in the ingredient list indicates the amount of sodium per 100 grams of food, and the sodium here can be absorbed by the body. Sodium can activate blood vessels, but eating too much may cause high blood pressure.

Nutrient Reference Value (NRV) is a reference standard for comparing the nutrient content of food on food nutrition labels, and is a nutritional reference scale for consumers when choosing food.

On the nutrition label, the nutrient content is indicated as a percentage of the nutrient reference value (NRV) and the revision interval is specified as 1.

It is calculated as: x nrv 100% = y % where x = the amount of a nutrient in the food.

NRV = nutrient reference value for this nutrient.

y % = calculated result.

A nutrient reference value of 1% refers to the percentage of green tea energy in the energy nutrient reference value (NRV) (the energy nutrient reference value is 1800kJ).

The description is that green tea has an energy or nutrient content of 1% (69

The nutrient reference value in the food label is sodium 2000mg. Dietary guidelines for Chinese residents should not exceed 6g of sodium intake per day.

Sodium in the human body is not easy to lack in general, only after a lot of sweating or excretion, vomiting, the body's electrolytes are lost very much, so it is necessary to replenish electrolytes at this time, such as injecting normal saline, drinking salt boiled water, etc.

In the daily diet, a certain amount of salt should be supplemented to ensure the body's normal electrolyte requirements. However, if the intake is excessive, the electrolytes in the body fluids will be excessive, and the osmotic pressure of the body fluids will be too large, resulting in a large amount of water in the body tissues entering the body fluids, making the human body present dehydration symptoms, and in severe cases, shock and even death may occur.

The role of sodium and how its nutrient facts are calculated.

Sodium is a chemical element with the element symbol Na, an atomic number of 11, and a relative atomic weight of 23. It is a soft and reactive large silvery-white metal. Sodium is the first group element of the periodic table and is a member of the alkali metals.

Sodium is an essential element for all animals and plants. Sodium ion is the most important cation in the extracellular fluid (ECF), which has an important impact on the osmotic pressure of the extracellular fluid and the interval of the extracellular fluid, and the loss of water in the interval will cause the concentration of sodium ions to rise, which is called hypernatremia, and the loss of water and sodium ions in the extracellular fluid interval isotonic properties, resulting in a smaller septum, this condition is called hyponatremia.

The sodium-potassium pump is used in human cells to move three potassium ions outside the cell and two sodium ions into the cell. The concentration of ions inside and outside the cell membrane is measured, with potassium ions of 40:1 and sodium ions of 1:

10。In nerve cells, when nerve cells are at rest, the exchange of cell membrane charges causes the conduction of nerve impulses, called action potentials, and sodium is the key to this action.