What are trace elements and what are they?

The human body is made up of more than 50 elements. According to the different content of elements in the human body, they can be divided into two categories: macro elements and trace elements. All elements that account for more than 1/10,000 of the total weight of the human body, such as carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur, calcium, magnesium, sodium, potassium, etc., are called macroelements.

All elements that account for less than 1/10,000 of the total weight of the human body, such as iron, zinc, copper, manganese, chromium, selenium, molybdenum, cobalt, fluorine, etc., are called trace elements (iron is also known as semi-trace elements). The amount of trace elements in the human body is really negligible, such as zinc, which accounts for only 33 parts per million of the total body weight. Iron is also only 60 parts per million.

In 1990, the expert committees of the three international organizations of the FAO, IAEA and WHO redefined the definition of essential trace elements and divided them into three categories according to their biological roles

1) There are 8 kinds of essential trace elements for the human body, including iodine, zinc, selenium, copper, molybdenum, chromium, cobalt and iron.

2) Elements that may be necessary for the human body, a total of 5, including manganese, silicon, boron, vanadium, and nickel.

3) Potentially toxic, but at low doses, may have essential functions for the human body, a total of 7 elements including fluorine, lead, cadmium, mercury, arsenic, aluminum, tin.

Trace elements refer to the elements that are less abundant in the human body, and there are about 70 kinds, including iron, iodine, zinc, selenium, fluorine, copper, cobalt, cadmium, mercury, lead, aluminum, tungsten, barium, titanium, niobium, zirconium, rubidium, germanium, etc.

What are trace elements and what are they?

Trace elements, also known as trace elements, are divided relative to the main elements, although the content in the human body is extremely small, but it has a strong biological science effect.

The essential trace elements in trace elements are elements that cannot be missing in living organisms, such as chromium, manganese, selenium, etc., in which these elements cannot be produced and synthesized in the body, and need to be provided by food.

The main trace elements are food and water, and in general, the content of trace elements in animal foods is greater than that in plant foods.

Trace elements are those in the body that are in the body in a body that is between body weight. There are about 70 trace elements, including iron, iodine, zinc, selenium, fluorine, copper, cobalt, cadmium, mercury, lead, aluminum, tungsten, barium, titanium, niobium, zirconium, rubidium, germanium and rare earth elements.

With the progress of science and the continuous expansion of people's understanding, the number of trace elements will increase. The main trace elements are food and water. With the development of industrialization, pollution, especially industrial pollution, has also become an important element intake, especially in mining areas.

The content of trace elements in animal foods is greater than that in plant foods, and the absorption is also better than that of plant foods.

All elements that account for less than 1/10,000 of the total weight of the human body are called trace elements, and there are 18 kinds of essential trace elements that have been identified as essential for human health and life, namely iron, copper, zinc, cobalt, manganese, chromium, selenium, iodine, nickel, fluorine, molybdenum, vanadium, tin, silicon, strontium, boron, rubidium, arsenic, etc.

What are trace elements.

The so-called trace elements, in environmental geochemistry, refer to more than 60 elements that only account for the components of the earth, and their content is generally between 1 10-8 1 10-88. In the medical field, from the perspective of the structure of the human body, the shack pants that account for less than 1/10,000 of the total weight of the human body are trace elements. According to the body's need for trace elements, those trace elements that are indispensable for maintaining the normal life activities of the organism, must be consumed through the intake of food and the daily dietary requirement is less than 100mg are called essential trace elements.

The human body is composed of more than 40 kinds of elements, according to the different content of elements in the body, the elements in the body can be divided into two categories: one is a macro element, accounting for body weight, including carbon, hydrogen, oxygen, phosphorus, sulfur, calcium, potassium, magnesium, sodium, chlorine and other 10 kinds, they constitute the body tissue, and play an electrolyte role in the body.

The second is trace elements, accounting for about body weight, including iron, copper, zinc, chromium, cobalt, manganese, nickel, tin, silicon, selenium, molybdenum, iodine, fluorine, vanadium and other 14 kinds, although the content of these trace elements in the body is negligible, but can play a physiological role in heavy losses and deficiency. There are 8 kinds of essential trace elements for the human body, including iodine, zinc, selenium, copper, molybdenum, chromium, cobalt and iron. Trace elements are elements whose content in the body is less than 1/10,000 of body weight.

There are three main types of trace elements.

1. Trace elements necessary for the human body, including iodine, zinc, selenium, copper, molybdenum, chromium, cobalt, and iron, these eight trace elements are essential trace elements for maintaining the normal biochemical metabolism of the body.

2. Trace elements that may be necessary, including manganese, silicon, nickel, boron, and vanadium, are five possible essential trace elements.

3. It is potentially toxic, but at low doses, it has a functional trace element for the body, including fluorine, lead, cadmium, mercury, arsenic, aluminum, lithium, and tin, a total of eight kinds.

01 Trace elements refer to elements that are lower than the human body in the human body, including iron, iodine, zinc, selenium, fluorine, copper, cobalt, cadmium, mercury, lead, aluminum, tungsten, barium, titanium, niobium, zirconium, rubidium, germanium and rare earth elements.

There are about 70 trace elements, which refer to the elements that are lower than the human body in the human body, including iron, iodine, zinc, selenium, fluorine, copper, cobalt, cadmium, mercury, lead, aluminum, tungsten, barium, titanium, niobium, zirconium, rubidium, germanium and rare earth elements. Although the amount of trace elements in the human body is extremely small, it has a powerful biological and scientific effect.

Trace elements refer to the elements in the human body that contain less than 1/10,000 of body weight, among which essential trace elements are indispensable elements for living organisms, such as iron, copper, zinc, cobalt, chromium, manganese, selenium, etc., which cannot be produced and synthesized in the body, and need to be provided by food. If you don't have the right diet, are picky or suffer from certain diseases, it is easy to cause deficiency. From the point of view of practical nutrition, calcium and iron are the elements that are more likely to be deficient, and iodine, zinc and selenium deficiency may also be caused by special geographical environments or other special conditions.

Some elements can also be poisoned by overdose. With the progress of science and the continuous expansion of people's understanding, the number of trace elements will increase. In 1973, the World Health Organization announced 14 essential trace elements, including iron, copper, manganese, zinc, cobalt, molybdenum, chromium, nickel, vanadium, fluorine, selenium, iodine, silicon, tin, etc.

Although the content of trace elements in the human body is very small, they have a strong biological role, they participate in the metabolic process of enzymes, hormones, vitamins and nucleic acids, and their physiological functions are mainly manifested in assisting in the transport of macro elements; as a component or activator of enzymes; Plays a unique role in hormones and vitamins; Affect nucleic acid metabolism, etc.

What are the trace elementsFirst of all, understand what trace elements are, which is defined in the Tanzao Encyclopedia, minerals that are lower than the human body weight are called trace elements, such as iron, manganese, zinc, same, iodine, etc. are trace elements. Trace elements are differentiated according to the proportion of the human body. So, what are the trace elements?

What are the trace elementsThere are 18 kinds of essential trace elements for the human body, namely iron, copper, zinc, cobalt, manganese, chromium, selenium, iodine, nickel, fluorine, molybdenum, vanadium, tin, silicon, strontium, boron, rubidium and arsenic. Each trace element has its own physiological function. Participate in the physiological response of various parts of the human body, no matter how small the content of trace elements in the human body, but these trace elements are indispensable, once these essential trace elements are missing, the human body will appear disease, and even life-threatening.

The role of trace elements in the human body1. Participate in the chemical reaction of enzymesThe trace element ginseng allows the chemical reaction between the sparrow and the enzyme, and the enzymes in the human body participate in various physiological reactions of the human body.

2. Regulate the acid-base balance of the human bodyTrace elements can regulate the acid-base balance, especially the four trace elements of potassium, calcium, sodium and magnesium, which directly participate in the regulation of the body's acid-base balance and maintain the normal operation of the body's physiological functions.