The article is consulted by Master, Dr. Nguyen Thi Nhat – Infectious Diseases Specialist – Department of Medical Examination and Internal Medicine – Share99 Hai Phong International Health Hub
Salt is an inic ussthanizing compound with the chemical formula NaCL. In the human body, salt plays a role in maintaining osmosis pressure, balancing the amount of water in the body and ensuring acid alkali balance. Health experts recommend eating excess salt or lack of salt can have a serious health impact.
1. What role does salt play in human health?
Besides the role of indispensable spices in dishes, salt is also in the composition of natural foods such as seafood, sea fish, meat, milk …. When given a reasonable amount of salt, the body can ensure acid alkali balance, preventing many diseases dangerous to health.
Specifically, salt plays an important role in keeping water balance in and out of cells, in the heart of blood vessels, which functions to maintain osmosis pressure, maintain cell potential and conduct nerve impulses. In case the body lacks salt, it will lead to a decrease in blood sodium, causing edema of the hands and feet due to free dehydration. Cons, if the body is excess salt can lead to cardiovascular, blood pressure and kidney diseases.
2. How much salt does the human body need?
Human salt needs according to each age as recommended by the World Health Organization are as follows:
- The amount of salt tolerated in the body with adults is about 5g of salt per day.
- Salt intake for children under one year of age is less than 1g of salt per day. However, you do not need to add salt to your child's daily food, because in natural foods that he eats miles such as meat, eggs, milk … all have sodium ingredients in accordance with the recommendations of experts.
- Salt intake for children aged one to three consumes a maximum of 3g of salt per day.
- Children 7 years and older can use up to 5g of salt.
- For patients with diseases such as cardiovascular, kidney, hypertension… the amount of salt can be adjusted down as directed by the doctor.
- In case of premature birth, poor renal function, salt intake should be limited to the lowest level. Therefore, parents should breastfeed their babies completely, or choose formulas with low mineral composition.
Thus, it is essential to adjust the nutrition in accordance with the needs of the body. In addition to adding salt content to the body as recommended by a Health professional, it is necessary to replenish the appropriate amount of water to reconcile the body's home environment. Drinking plenty of water is a way to eliminate excess salt (if any).
3. What would the body be like without salt?
If the required amount of salt is not met, the human body may face health problems such as:
Lack of electrolyses: In sweat, tears, human urine all have salt. Therefore, a pale diet leading to a lack of salt can cause electrolym deficiency, conversion disorders, decreased blood volume …
Cerebral edema: A lack of salt causes the body's sodium blood to lower normally, causing brain mes tissues to edema. Signs of body salt deficiency causing cerebral edema include: Headache, dizziness, consciousness disorders, loss of concentration, nausea … The amount of sodium in the blood decreases rapidly and suddenly can appear severe symptoms such as coma, convulsions …
Hypotension: When sodiumemia decreases, the osmotic pressure in the heart of the blood vessels is reduced, causing blood pressure to drop. The implications of lowering blood pressure are causing the body to fatigue, depletion due to important muscles such as the brain, liver, kidneys … lack of oxygen and nutrients.
Body edema: A pale diet causes the amount of sodium blood to decrease, causing water to freely escape into the interstitial range causing the body to suffer from hand edema, leg edema, leg edema or, more dangerously, full-body edema.
Impaired mechanical function: Manifestations of impaired muscle function such as muscle fatigue, cramps, cow ants, muscle paralysis…. is a sign that the body lacks salt that causes hyponatremia.
The amount of salt suitable for the human body depends on age, health condition … For adults in normal health, voluntarily cutting salt below recommended levels can be the cause of many dangerous health problems. Therefore, consult your doctor, dietitian about the daily diet that best suits your body for the right adjustment.
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