Water, trace elements and Health


1, metabolism and physiological significance of water in the body


Since the water has a strong dissolving ability, a large dielectric constant, a small viscosity, specific heat higher physical and chemical properties, it has in vivo special significance.


First, water is an essential component of the human body, is to sustain life, maintain cell shape, the material constituting the various body fluids are necessary;


Second, involved in metabolism. Since water has a strong solubility, so that various organic and inorganic substances dissolved in water, and even some fat and protein can be dispersed in water under appropriate conditions to form an emulsion or a colloidal solution. Due to the flow of water is strong, as a carrier for various substances in vivo, for the transport and absorption of various nutrients, gas exchange and transport, and excretion of metabolites transport plays a very important role. Water is the medium in vivo biochemical reactions, while water itself also participate in chemical reactions in the body. Water is a variety of chemicals to ensure the normal metabolism of the body. Therefore, water is the main metabolic maintain physiological medium (nutrient medium belongs) i.e., the absorption of water by nutrients (nutrient Structure - protein, fat, carbohydrates, minerals and other constants; regulation of nutrients - Trace Element , elements such as micro) was dissolved conveyed to various parts of the body, followed by the water outside of the metabolites from the body, so as to maintain the conversion process and the energy and material balance in vivo.


Third, regulating body temperature. Adjusting the temperature of the water is determined by its three characteristics:


of the high specific heat of water. Since the body contains a large amount of water, the heat generated in the metabolic process more water is absorbed, the temperature remains constant;


heat of vaporization of water is large. When the body at 37 鈩? evaporation heat per ml of water for power 2424.6 (579.5 card), a small amount of water evaporation and thus to distribute a large amount of heat storage body;


Strong thermal conductivity of water. Water is the most non-metals good heat conductor, while the body of the tissue metabolism different strength, heat generation is not the same, but the heat conduction through the water to keep the temperature between various tissues and organs of the body converge.


Fourth, as a lubricant. Viscosity of water is small, the frictional parts of the body lubricants, to reduce the damage. Body joints, ligaments, muscle activity at the film made of water as a lubricant. At the same time water can also nourish the body cells to keep moiststatus. Water can keep the skin soft and elastic. Water can also maintain the normal secretion of glands organs.


2, is an essential trace element nutrient


1 of inorganic salts, and in vivo


chemical element present in the human body there are dozens, remove carbon , hydrogen, oxygen, nitrogen, primarily in the form of an outer organic compound, an inorganic salt or the remaining elements are known various minerals. Some minerals are normal physiological function of the body necessary, and must be constantly supplied from the diet. These substances have a higher content in the body of calcium, magnesium, potassium, sodium, phosphorus, chlorine, sulfur, microelements, about 60 to 80% of the total ash content of the body. Other elements in the body little content, some even only traces of the element (only in the tissue concentration in micrograms / kilogram), the body typically less than 0.1 g / kg is referred to as trace elements. Essential trace elements known 14 kinds of iron, zinc, iodine, copper, selenium, fluorine, molybdenum, cobalt, chromium, nickel, tin, vanadium and silicon.


salts and trace elements constitute an important physiological function of adjusting the material body, it will cause disease in the absence of. Salts major role in the body tissue and the body is configured to maintain the normal physiological function, and each element in turn having respective special role, summed up, has the effect of the following aspects:


configuration of the body tissue. Such as calcium, phosphorus, magnesium is the main ingredient in bones and teeth, bones and having a certain strength and hardness. Phosphorus and sulfur are constituent components of the tissue proteins, these compounds constitute a muscular organ, blood cells and other soft tissue of the body.


Mineral and synergistic maintenance of intracellular proteins, extracellular normal osmotic pressure and excretion of acid-base balance of body fluids is maintained.


various inorganic ions in body fluids, such as potassium, sodium, calcium, magnesium, maintained at a constant ratio permeability and muscle and nerve cell membrane excitability.


Certain inorganic elements is the body composition of matter having the important particularity physiological functions, such as hemoglobin and cytochrome enzymes iron, iodine in the thyroid hormones and glutathione peroxidase in selenium.


Many minerals in the body and enzyme activator constituent. The hydrochloride of pepsinogen; salivary amylase chloride ion; magnesium ion for a variety of enzymes of oxidative phosphorylation.


in the body metabolismProcess, at any time a certain amount of minerals excreted in different ways and must therefore be supplemented through the diet given promptly. Widespread minerals in food, it is generally unlikely to cause deficiency, but according to different physiological conditions and different geographical environment or other special conditions which may cause the lack of certain elements, should be given special supplement. Physiological significance


Source 2 with trace elements


As described above, various elements of trace elements in the chemical composition of the human body but little content essential chemical elements, these elements on nutrition called trace elements. Trace elements have important physiological functions, for example, which is a synthetic raw material of certain hormones, or many enzyme systems activators or cofactors. Therefore, trace elements is an essential nutrient.


listed several physiological significance of trace elements and sources for reference.



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