Q:

Why do we need salt?

A:

People need salt because it helps to maintain water balance in the body. It also supports the transmission of nerve impulses and the proper functioning of the muscles. Normally, the kidneys regulate the balance of salt in the body by storing it when the levels are low and excreting it in the urine when the levels are too high.

The consumption of small amounts of salt is necessary for life. The U.S. Department of Health and Human Services recommends that people consume no more than 2,300 milligrams of salt a day. This is about a teaspoon.

Though sea salt is promoted as being healthier than table salt, the two have about the same amount of sodium. Their tastes and textures are different because of the way they're processed.

Salt has been used as a preservative for thousands of years. It also is used as a seasoning to make otherwise bland foods taste better. Taste buds on the tongue, throat and palate have evolved to perceive saltiness.

Salt also is used for deicing roadways. It's used to make paper, polyvinylchloride, soap, synthetic rubber and plastics. It's also used to dye fabrics, tan hides, glaze pottery and remove impurities from aluminum processing.


Is this answer helpful?

Similar Questions

  • Q:

    Is salt good for you?

    A:

    A little bit of salt each day is important to replace amounts lost through sweat and to supply the body with necessary nutrients, according to WebMD. However, more than about one teaspoon of salt each day can increase a person's risk of high blood pressure.

    Full Answer >
  • Q:

    What is mannitol salt agar?

    A:

    Mannitol salt agar is a gelatinous growth medium that is used in microbiological laboratory settings. MSA is typically comprised of animal proteins, mannitol sugar, agar, table salt and phenol red.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of the urethra?

    A:

    The urethra is a tube responsible for allowing urine to leave the body as it empties from the bladder. In men, semen also leaves the body through the urethra.

    Full Answer >
    Filed Under:
  • Q:

    What are characteristics of nonliving things?

    A:

    A nonliving thing is a body or object that is inanimate or dead. It is anything that lacks or stops displaying the characteristics of life. One of the most significant characteristics and differences of a nonliving to a living thing is its lack of protoplasm, which is the living substance of cells. Without protoplasm, nonliving things are not capable of reproduction, growth, movement, respiration and metabolism.

    Full Answer >
    Filed Under:

Explore