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Because salt plays a very important role in the human body. Salt can supplement the body's nutrients, help the body's metabolism, and promote nutrient absorption. Humans are very different from other animals, so they can also distinguish the difference from other living beings.
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That's due to the needs of the human body, salt is an indispensable component of the human body, and salt satisfies the body's need for sodium. Prevention of hypertensive coronary heart disease.
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In fact, salt is also attractive to other animals, but humans will look for this kind of taste on their own, so they will add extra salt to their food as they eat it gradually.
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For the sake of deliciousness, tasteless food makes people not feel happy and beautiful.
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The reason why humans have to eat salt every day is to supplement the sodium chloride in it, because sodium chloride contains sodium, which is very important to the human body.
Sodium can not only maintain the blood osmotic balance in the human body, but also promote the body's functional metabolism. We know that some people often experience physiological phenomena such as dizziness and loss of appetite in their lives, and one of the important reasons is that they usually do not like to eat salt or eat very little salt, which leads to a lack of sodium in the body. Therefore, in order to make the body consume enough sodium, human beings have to eat salt every day.
Let's talk about why animals don't need to eat salt. Since we humans eat salt to extract the sodium in it, it is easy to understand that animals do not need to eat salt, because they will ingest sodium through other means, not necessarily salt. For example, many animals eat grass, and some grasses contain small amounts of sodium chloride.
If eating grass can not take enough sodium chloride, animals will go to other places to ingest, such as stones, soil, etc., I believe that many people will find that dogs have the habit of licking the soil when walking dogs, in fact, it is to replenish sodium in the body. Speaking of which, the phenomenon that humans eat salt every day while animals don't need to eat salt is explained.
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Humans have to eat so much salt because people can't eat soil that contains salt, they can only supplement salt by eating salt, wild animals can eat soil containing salt to supplement salt, and domestic animals have salt in their feed, of course, don't eat salt deliberately.
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You are wrong, animals also need salt, it has its own way to obtain, salt is naturally present, and some feed is artificially added, and there will be various salts in it to maintain his body functions.
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Generally speaking, I think the system is different between humans and animals, because I think animals still need this very much.
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Wild animals can't recognize this, even though they can consume a certain amount of salt just by eating.
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There is sodium in salt, and animals will ingest sodium through other ways, not necessarily salt, but grass.
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Because the organs of animals and humans are different, and the habits of animals and humans are also different, the things that animals and humans need to eat are also different.
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Because the food that animals eat is obtained from nature, they can get a lot of salt from their food, and there is no need to supplement salt at all.
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Animals also need to eat salt, and the way animals consume salt is different from the way humans consume salt, and many animals also need to eat salt.
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Salt, also known as sodium chloride, is a white crystal composed of a sodium ion and a chloride ion, which is the seasoning of people's delicious food. I don't know if you have found it, every time you cook a dish, you can have no seasonings such as MSG, but salt must be put in, why is this a dish? Why do people need to eat salt, let me answer your questions.
Salt is generally referred to as sodium chloride, which is a white crystal composed of one sodium ion and one chloride ion. Sodium and many other inorganic salt (i.e., mineral) ions, such as potassium, calcium, magnesium, chloride, bicarbonate and phosphate, are essential substances for the human body.
Humans contain about 40 millimole of sodium ions per kilogram of body weight, of which about 50% are distributed outside the cell, about 10% are present in the cell, and about 40% are contained in the bone matrix. Sodium salt is an important substance that regulates the water balance in the human body, and the kidneys maintain water in the human body through the reabsorption of sodium. The balance of sodium and water also maintains the body's normal body fluid volume and circulating blood volume.
Sodium ions are also involved in the excretion of acidic metabolites in the kidneys, contributing to the maintenance of acid-base balance in the body. The chloride ions in table salt are an important component of stomach acid. In addition, sodium and chloride ions are also involved in the bioelectrical activity of nerves, muscles, and cells of certain glands.
If people do not eat salt for a long time or eat too little salt, it will cause the sodium content in the body to be too low, loss of appetite, weakness of limbs, dizziness and other phenomena, and in severe cases, anorexia, nausea, vomiting, rapid heart rate, weak pulse, muscle spasms, blurred vision, weakened reflex activities and other symptoms. But eating too much salt can also be harmful to your health, for example, and may cause high blood pressure. Therefore, the World Health Organization recommends that adults eat no more than 5 grams of salt per day.
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1. Salt can provide a large amount of sodium, which plays a variety of vital roles for the human body, which can promote the metabolism of proteins and carbohydrates, the transmission of nerve impulses and muscle contraction, and also regulate the consumption of hormones and cells to oxygen, control urine production, thirst and produce fluids.
2. Salt is not only an important condiment, but also an indispensable substance for maintaining the normal development of the human body. Salt can regulate the balanced distribution of water in the human body, maintain osmotic pressure inside and outside cells, participate in the formation of gastric acid, promote the secretion of digestive juices, and increase appetite.
It is important to note that eating food that is too salty every day can trigger some related diseases. For example, high blood pressure, high blood viscosity, etc., so it is best to consume no more than 6g of salt every day, and the food consumed should be as light as salt as possible, which is more conducive to our health.
Introduction to table salt
Table salt refers to different sea salt, well salt, mineral salt, lake salt, soil salt, etc. Their main ingredient is sodium chloride, and the state stipulates that the sodium chloride content of well salt and mineral salt shall not be less than 95%. Table salt contains barium salts, chlorides, magnesium, lead, arsenic, zinc, sulfate impurities.
We stipulate that the barium content should not exceed 20mg kg. Excessive magnesium and calcium content in table salt can make the salt bitter, and high fluoride content can also cause poisoning.
Edible salt is iodized salt made by adding a certain amount of iodine to refined salt, crushed washing salt, and sun-dried salt. The iodine in salt can only be biologically active in the human body after it is converted into iodine ions. The properties of iodide are extremely unstable, easy to decompose, volatilize and fail.
Because the body hair of humans disappeared during the evolutionary process, the body could not resist the cold, and other creatures did not need clothes to resist the cold, so the creatures on earth only humans needed to wear clothes to keep warm.
It's just that we don't call the hair on the head of other animals hair, and the hair on the human body degenerates, and the hair on the head is left, which is called hair. Many elderly people are bald, and it should not be said that the hair will be until the end of life.
Because the meat of carnivores is not tasty, and it is generally very ferocious.
I think it's a matter of definition. Due to the uneven distribution of various civilization elements in time and geography, various civilizations with obvious differences have been produced, specifically in modern times, that is, the four major civilizations of Western civilization, Arab civilization, Eastern civilization, and ancient Indian civilization, as well as the sub-civilizations of Russia, Turkey, Oceanic Civilization and Southeast Asian Civilization formed by the convergence and integration of multiple civilizations. We collectively refer to these civilizations as human civilizations, so there are only human civilizations on the earth. >>>More
The earth has been formed for 4.6 billion years, and the history of life on the earth has been more than 3 billion years. This should be a question that many people have. >>>More