Is recycling recycled silver good for your health?

Cod liver oil in a narrow sense is an oil extracted from the liver of marine fish. Broadly speaking, cod liver oil also includes the liver oil of whales, seals and other marine animals. At room temperature, it is a yellow transparent liquid similar to cod liver oil, with a slight fishy smell. It is often used to prevent and treat night blindness, keratomalacia, rickets and osteomalacia, and also has protective effect on epidermal tissues such as upper respiratory mucosa. It is mainly composed of fatty glycerides with high unsaturation, in addition to a small amount of phospholipids and unsaponifiable substances. Cod and turbot are traditional raw materials for producing cod liver oil in the world. China mainly uses sharks, rays, large yellow croaker, mackerel and bamboo pod fish. Vitamin A in cod liver oil can promote the formation of phytochrome in visual cells and adjust the ability of eyes to adapt to the intensity of external light, thus reducing the occurrence of night blindness and vision loss and maintaining normal visual response. Vitamin D helps to promote the absorption of calcium. Lack of vitamin D in infants can lead to rickets, and lack of vitamin D in adults can lead to osteomalacia. Edit the composition of this paragraph. The main components of cod liver oil are vitamins A and D. The main function of vitamin A is to maintain the normal growth, reproduction, vision, epithelial tissue and anti-infection immune function of the body. . Vitamin A deficiency can lead to: skeletal retardation in children; Affect the development of tooth enamel cells, teeth are not perfect; Epithelial tissue structure is damaged; Low immune function is easy to cause various infections of respiratory tract, digestive tract and urinary tract. The main function of vitamin D is to promote the absorption of calcium and phosphorus by intestinal mucosa. Promote the reabsorption of calcium and phosphorus by renal tubules. Vitamin d deficiency can cause: the absorption of calcium and phosphorus in the intestine is reduced, and the calcification of osteoid tissue is blocked; Rickets is characterized by panic, sweating, irritability and bone changes. Vitamins A and D are both fat-soluble vitamins. Vitamin A exists in animal livers, especially fish livers, followed by milk and eggs. The other is the form of carotene, such as carrots, tomatoes, beans and green leafy vegetables, which are converted into vitamin A in the liver. Vitamin D mainly exists in the liver of animals, especially in the liver of marine fish. In addition, 7- dehydrocholesterol in the skin can also be converted into vitamin D under the action of ultraviolet rays. The human body takes vitamin D from sunlight and food. It can be seen that cod liver oil is not the only source of vitamins A and D for children. The function of vitamin A: 1. Promote epithelial cell differentiation and help maintain the health of skin and mucosa. 2. Maintaining normal vision can prevent night blindness and dry eye. 3. Help the growth, development and recovery of body tissues. 4. Enhance immunity. The function of vitamin D: 1 and D promote calcium and phosphorus absorption. 2. Calcification of bones, normal development of bones and teeth. 3. Maintain normal metabolism. Edit the preparation method of this paragraph. Oil extracted from fish liver. Broadly speaking, cod liver oil also includes the liver oil of whales, seals and other marine animals. It is a yellow transparent liquid at room temperature, with a slight fishy smell. It is often used to prevent and treat night blindness, keratomalacia, rickets and osteomalacia, and also has protective effect on epidermal tissues such as upper respiratory mucosa. It is mainly composed of fatty glycerides with high unsaturation, in addition to a small amount of phospholipids and unsaponifiable substances. Cod and turbot are traditional raw materials for producing cod liver oil in the world. China mainly uses sharks, rays, large yellow croaker, mackerel and bamboo pod fish. The main production methods are: ① cooking. Chopped fish liver is directly steamed, left standing or centrifugally separated to obtain clear oil. This method is used to produce oily fish liver and cod liver oil on fishing boats. (2) light alkali digestion. Chopped fish liver is boiled with water and sodium hydroxide, and liver oil is separated by centrifugation before refining. ③ Extraction method. Extracting chopped fish liver with organic solvent, and recovering solvent from the extract; Or digest the fish liver with light alkali first, and then extract it with low titer cod liver oil or vegetable oil. The method is suitable for fish liver with low oil content and high vitamin titer. The cod liver oil prepared by the above method must also be partially separated at low temperature and filtered to obtain clear cod liver oil. Overview of editing functions This paragraph of cod liver oil contains vitamins A and D, and is often used to prevent and treat vitamin A and vitamin D deficiency. Vitamin A plays an important role in maintaining night vision and the integrity of epithelial cells. Lack of vitamin A can lead to dry skin, keratosis of hair follicles, dry eye and night blindness. Vitamin D can help the absorption of calcium and promote bone calcification. Vitamin D deficiency can produce vitamin D deficiency rickets. In addition to food, normal people's skin also contains a kind of 7- dehydrocholesterol, which can also be converted into vitamin D3 under ultraviolet irradiation, so more sun exposure can also prevent rickets. The principal component is 1. The chemical name of squalene (CQALENE) is C3hexaene, which can provide oxygen to cells, promote metabolism, repair and regenerate. 2. Alkyl glycerol (AKG) can enhance immunity, resist radiation and cancer. 3.EPA and DHA clean blood vessels and promote fat metabolism. 4. Vitamin A and vitamin E indicate that children's bones are growing and developing, and they need a certain amount of vitamin D every day. For children, it is beneficial to take a proper amount of cod liver oil every day (3-4 drops of concentrated cod liver oil every day), especially in winter in northern areas. How long it takes depends on the child's physical development. Taking cod liver oil with the ratio of vitamin A to D exceeding 3 ~ 4 ∶ 1 for a long time will easily lead to excessive intake of vitamin A and poisoning. Please refer to each product manual or follow the doctor's advice for specific administration methods. Although taking cod liver oil can prevent rickets, it does not mean that every child needs to take it, because vitamin A and vitamin D are not vitamins that are difficult to supplement. If enough attention is paid in daily life, it is entirely possible for children not to take it. There are four situations in which they need to take the cod liver oil: 1. The mother's breast milk is insufficient, which belongs to mixed feeding; 2. After weaning, egg yolk was not added in the complementary food in time, and animals' livers and other fruits and vegetables rich in vitamins A, D and carotene; 3. Children with respiratory and digestive tract infections, dry eye, keratomalacia and dry skin caused by vitamin A deficiency. 4. Stay indoors and get less sunshine; Indications: 1. It is used as a nutritional agent for tuberculosis patients, convalescents after illness, infants and parturients. 2. For night blindness, rickets, dry eye, rickets and other patients who lack vitamins A and D ... 3. The one with short eyelashes. Other uses of cod liver oil In addition, applying cod liver oil to the root of eyelashes can stimulate the growth of eyelashes. The effect is very good. Cod liver oil is a kind of cod liver oil. Most cod live in the cold waters of the Pacific Ocean and the North Atlantic Ocean, and the water temperature is 0℃ ~ 16℃. As long as everyone who can move eats and eats a lot, it grows fast, and it can grow to 1 m in about 10 years; A female fish with a body length of about 1 m can lay as many as 3 to 4 million eggs at a time. Because of social life, it is easy to catch, and it has been a famous edible fish since ancient times. The nutritional value of cod is naturally superior to other fish, especially its liver, and its oil content is as high as 40%. Kinkish cod liver oil contains not only all vitamins A and D of common cod liver oil, but also DHA, DPA and ARA necessary for the development of human brain and eyes. Therefore, wild cod liver oil has become the best of cod liver oil and is known as "liquid gold". Norway, a country with a long history, has been producing cod liver oil for more than 160 years. The unique modern cold pressing technology is used to extract cod liver oil, and the nutritional components are completely preserved. Cod liver oil has the following advantages: 1. Silver cod is a deep-sea fish, and its cod liver oil is better (freshwater fish, miscellaneous fish or synthetic cod liver oil is worse). Silver cod is not omnivorous, clean and pollution-free, and the quality of its cod liver oil is safe and reliable (sharks are omnivorous, and pollution is occasionally reported). 2, the deodorization process is good, the taste is pure, and adults and children are easy to accept. 3. the contents of vitamins a and d meet the safety standards of the world health organization, and will not be overdosed after long-term use. Cod liver oil is suitable for people: 1. People with poor health, frequent colds and bronchitis: children and the elderly often have this problem, which is actually caused by low immunity. The effective components of cod liver oil can increase the concentration of serum immunoglobulin IgG and IgM, enhance the respiratory tract clearance and phagocytosis defense function, and thus enhance the disease resistance of the body and respiratory system. Therefore, children who often catch colds and bronchitis, and elderly people with chronic bronchitis, emphysema and cough should stick to it. Second, allergic rhinitis: Cod liver oil can obviously improve the resistance of nasal mucosa and enhance the physique of patients with rhinitis, so it can reduce the attack of rhinitis and relieve the symptoms of rhinitis (with glumin, the effect is better). Third, calcium deficiency in children and osteoporosis in the elderly: children's bone development needs a lot of calcium. If calcium is not well absorbed, it will lead to calcium deficiency and affect the development of bones and height. At present, children's food in most parts of China is rich in calcium, and their intake is sufficient. The reason for calcium deficiency is that calcium cannot be absorbed well. The absorption of calcium needs the help of vitamin D. Natural vitamin D comes from sunlight and is converted into skin. Most children in cities have little outdoor activities and live in forests with high buildings, so they are easy to lack natural vitamin D. Replenish cod liver oil at this time. Its rich natural vitamin D can help children absorb calcium better and correct calcium deficiency, so it is especially beneficial to children's bone and height development. Cod liver oil is also good for osteoporosis in the elderly. Fourth, poor eyesight, eye fatigue and brain fatigue: these problems mostly occur in children and the elderly who are seeking a semester. Cod liver oil contains natural vitamin A, which is a nutrient to maintain eye vision in the dark. If it is lacking, it is night blindness, commonly known as "chicken blindness." In addition, DHA contained in cod liver oil is an important part of retina, which is not found in other cod liver oils. At the same time, DHA is also recognized as an important nutrient to improve intelligence and promote brain development. Five, maternal use: it can reduce the occurrence of pregnant women during pregnancy, promote the development of fetal bones and brains, and make the baby physically strong after birth. The main ingredient used in this paragraph is shark liver oil. Squalene was discovered by Swedish scientist Dr. Kaga 1906 and won the Nobel Prize that year. 1952, Dr. Vitri Blake discovered that sharks in Icelandic waters contain squalene and alkyl glycerol (AKG), which is different from other sharks. Since then, Icelandic shark cod liver oil capsules have come out. It has a history of 54 years. It is all the rage in Europe, America and Japan. The key to shark becoming the healthiest and only cancer-free mammal in the world is that shark cod liver oil contains an active therapeutic molecule-alkoxyglycerol (AKGS), which is called the natural king of immunity. Scientists have found that alkoxyglycerol (AKGS) can stimulate the production of immune cells, increase the number of white blood cells, lymphocytes and platelets, and promote the activation of immune cells. It has strong resistance to many diseases that invade the human body. Alkoxy glycerol (AKGS) has a unique antioxidant effect. Traditional antioxidants, such as vitamins C and E, can also resist oxidation, but they are all carried out from outside the cell and rarely penetrate the cell membrane and enter the cell. Alkoxy glycerol (AKGS) is one of the few intracellular antioxidants. Cod liver oil-liquid golden cod mostly lives in the cold sea with the water temperature of 0℃ ~ 16℃ in the Pacific Ocean and the northern Atlantic Ocean. As long as everyone who can move eats and eats a lot, it grows fast, and it can grow to 1 m in about 10 years; A female fish with a body length of about 1 m can lay as many as 3 to 4 million eggs at a time. Because of social life, it is easy to catch, and it has been a famous edible fish since ancient times. The nutritional value of cod is naturally superior to other fish, especially its liver, and its oil content is as high as 40%. In addition to all vitamins A and D of common cod liver oil, it also contains DHA, DPA and ARA necessary for the development of human brain and eyes. Therefore, wild cod liver oil has become the best of cod liver oil and is known as "liquid gold". Norway, a country with a long history, has been producing cod liver oil for more than 160 years. The unique modern cold pressing technology is used to extract cod liver oil, and the nutritional components are completely preserved. Compared with shark liver oil, cod liver oil is purer. After all, sharks eat sundries and the nutrients are not very pure. It is right for newborns to eat pure cod liver oil. According to records, the deep-sea cod in the Arctic Circle of Norway is the purest organism for extracting cod liver oil. Cod feeds on seaweed, which contains DHA. DHA, AA and brain and visual development DHA (brain gold) and AA (arachidonic acid) are all important substances in the development of human nervous system and visual nerve. The content in brain tissue is about 15%, which plays a role in transmitting signals between rod cells in retina. Related memory, thinking and visual kinetic energy all depend on the maintenance and improvement of DHA and AA. About 80% of the growth and development of human brain tissue is completed within 0~ 1 year, which is the peak stage of infant's cognitive level and visual function development. If DHA and AA are lacking in infancy, it will affect the development of infants' intelligence and vision and cause lifelong regret to children. 1999 More than 7,000 babies will be tested at Lida University in Kentucky, USA. The IQ of breast-fed children is 3%~5% higher than that of artificially fed children. Because breast milk is rich in DHA and AA, which is 4~7 times that of milk. In 2000, the Southwest Retina Foundation of the United States conducted a four-month feeding experiment on infants. The control group did not contain DHA and AA, and the experimental group added 0.35% DHA；. . The other group added 0.36%DHA and 0.72%AA[ 1]. The results showed that the average IQ of DHA and AA infants was 7 points higher than that of the control group, 3 points higher than that of DHA infants alone, and the eyesight of DHA and AA infants was also significantly higher than that of the control group. It shows that DHA and AA supplementation is extremely important for infant intelligence and vision development. Cod liver oil-The best cod liver oil in the world is produced in three deep-sea areas: Australia, Northern Europe and Japan. Among them, the deep-sea cod in northern Europe and Norway is the purest and nutritious. Norwegian deep-sea cod liver oil is not only rich in natural Va and Vd, but also rich in natural DHA. It has the characteristics of high purity and easy absorption, and is more suitable for infants. Nutrient I (10-June formula) contains: Va-600IU, Vd-300IU, DHA-30mg；; Norwegian cod liver oil II (June-June+February formula) contains: Va-600IU, Vd-300IU, DHA-35 mgii(65438). Product specifications of Vd-300IU and DHA-35 mg: 60 capsules in the first section, 20 capsules in the second section, 20 capsules in the third section and 60 capsules. How to eat: Take one pill once a day. How to eat: orally. Cut or puncture the top of the capsule and drop the contents into the baby's mouth. Cod liver oil is often used in infant milk powder and other products. Can hepatitis eat cod liver oil? Cod liver oil is an unsaturated fatty acid, and its main components are vitamin A and vitamin D. Many patients with weak liver disease will also use cod liver oil to supplement the fatty acids and vitamins that the body lacks. The vitamins contained in cod liver oil are very beneficial to the condition of patients with liver disease and can stimulate the ability of human immune diseases. Cod liver oil can also prevent diseases such as arteriosclerosis and hypertension. However, due to the liver damage of hepatitis patients, the absorption and metabolism ability of the liver is reduced. Excessive consumption of cod liver oil can cause liver poisoning, leading to hair loss, dry and itchy skin, loss of appetite, hepatosplenomegaly and increased intracranial pressure. Therefore, patients with hepatitis should pay attention to proper intake. The difference between fish oil, cod liver oil and cod liver oil 1), fish oil, cod liver oil People often regard fish oil and cod liver oil as the same food. In fact, cod liver oil comes from fish liver, and its main components are natural vitamins A and D; Fish oil is an extract of fish fat, which contains omega-3 fatty acids DHA and EPA. Their effects on human health are completely different. Cod liver oil produced in Norway and other places is caught in the deep-sea cold water of the Norwegian Sea at high latitude in winter. It is rich in vitamins A and D3, and omega-3 fatty acids. It has the functions of fish oil and cod liver oil, and is known as "liquid gold". 2) Synthetic vitamin AD pills, cod liver oil pills and shark liver oil. Due to the lack of natural resources of marine fish liver, most of the cod liver oil sold in the market now is made of vegetable oil as a carrier and synthetic vitamin A and vitamin D added. Strictly speaking, they can't be called "cod liver oil", but "synthetic vitamin AD oil". The synthetic dose is very high. When eating, it should be noted that vitamin A/D is fat-soluble, and long-term excessive intake will have side effects or poisoning, especially for children to eat as candy at will. At present, there are shark cod liver oil pills on the market, which mainly contain squalene, vitamins and omega-3 fatty acids. Be careful not to be confused. 3) How to choose fish oil and cod liver oil products containing ω-3 fatty acids? First, when choosing products, we should first look at the content of effective ingredients, that is, the content and proportion of omega-3 fatty acids and vitamins, especially DHA, EPA and DPA. For children, the content of DHA (including DPA) should be higher than that of EPA, because high-dose intake of EPA may have adverse effects on children's growth. Therefore, the "cod liver oil" sold in the market without DHA and EPA content is not real cod liver oil; Secondly, because omega-3 fatty acids are easy to be oxidized and deteriorated, it is best to choose liquid nitrogen filled with antioxidant vitamin E. Thirdly, the liquid should be bottled in dark glass, and fish oil products in transparent glass bottles should not be bought. Finally, pay attention to the factory date of the product when buying, and don't buy fish oil products that exceed the factory date for two years. (Originally published in Health Times, which is in charge of the Ministry of Health), this paragraph was edited to distinguish cod liver oil, AD compound preparation and vitamin D preparation. In infant health care, cod liver oil is similar to AD compound preparation, and consumers often use AD compound preparation instead of cod liver oil. Cod liver oil and AD compound preparation are similar in that they both contain vitamin A and vitamin D in a fixed proportion. Separate vitamin D preparation: For most infants who are in urgent need of vitamin D supplementation and vitamin A deficiency, separate vitamin D preparation is more widely needed. (Avidi) Drops (containing 1200IU vitamin D3 per milliliter) is the first imported natural source D3 in China, which is more suitable for daily use, especially for pregnant women and infants. Infants and young children have 1-2 cells per day (each cell contains 300IU vitamin D3), and pregnant women and lactating mothers can increase to 2-3 cells. Adults adjust the dose as appropriate. The difference between cod liver oil and fish oil cod liver oil is a kind of fatty oil proposed in the liver of non-toxic marine fish. After removing some solid fat at about 0℃, it is made by adjusting the concentration with refined edible vegetable oil, vitamin A and vitamin D3, and adding a proper amount of stabilizer. Cod liver oil can strengthen bones, so it is often used to supplement calcium for children. Fish oil is the general name of all oily substances in fish, including body oil, liver oil and brain oil. Fish oil is a by-product of fish meal processing, which is obtained by steaming, squeezing and separating fish and its internal organs. The main functional component of fish oil is omega-3 fatty acid, which is a scavenger of human blood vessels and can also prevent arteriosclerosis, stroke and heart disease. The efficacy of cod liver oil varies greatly. The main source of cod liver oil is fish liver, and its main components are vitamin A and vitamin D, and it does not contain unsaturated fatty acids (OMEGA-3). Fish oil is an extract of deep-sea fish oil fat, which belongs to oils. Its main component is polyunsaturated fatty acids, which can prevent diseases such as arteriosclerosis and hypertension. Therefore, if any cod liver oil claims to contain OMEGA-3 (unsaturated fatty acids), it may exaggerate its efficacy or artificially add it in the later processing. Precautions for editing this paragraph: If the baby's breast milk is insufficient or the eggs yolk, animal liver and other vegetables and fruits rich in vitamins A and D and carotene are not added in time after weaning; Or suffering from chronic diarrhea, hepatobiliary diseases, etc. , affecting the absorption of vitamins a and d; Or suffering from chronic wasting diseases increases the consumption of vitamins a and d; Or insufficient sunshine; And increase demand will lead to vitamin A and/or D deficiency. The content of vitamin A in milk is higher than that in milk. If the lactating mother is well-nourished and has a balanced diet, most of the vitamin A in milk can meet the baby's needs. However, there is less vitamin D in breast milk and milk, so breast-fed or breast-fed babies should be given a preventive dose of D400 units of vitamin D every day from 2-3 weeks after birth for 2-3 years, especially premature babies, twins and children with vitamin A and D deficiency caused by the above factors, and extra vitamin A and D supplements are needed. After 2.3 years old, children's growth rate slows down, diet varieties and outdoor activities increase, and cod liver oil is generally not needed. Taking a large amount of cod liver oil pills for a long time will inevitably increase the body's absorption of calcium and phosphorus. Urinary calculi are closely related to the increase of calcium and phosphorus in urine. Too much calcium and phosphorus in blood will increase calcium and phosphorus in urine, which is prone to urinary calculi. Therefore, the elderly should not take too much cod liver oil. Generally speaking, take 1 pill three times a day and stop taking it for two weeks. Drink plenty of water at ordinary times, increase urine excretion and prevent calcium precipitation. People with urinary calculi or weak constitution should not take cod liver oil to avoid aggravating the symptoms of calculi or poisoning. Edit this paragraph, pay attention to quantify that the amount of vitamin A needed by the human body is extremely small, and it is enough for physiological needs to take it from food. At present, due to the continuous improvement of people's living standards and the continuous enrichment of diet nutrition, vitamin A deficiency is rare. Only in the human body can you get some diseases, such as hepatitis, pancreatitis, diarrhea and so on. ; Or in the long-term fever, pregnancy, breastfeeding, vitamin A deficiency will occur due to the increase in vitamin demand. In order to prevent and treat rickets in children, vitamin D should be the first choice, and the amount of vitamin D in cod liver oil is less than A 10 times. As mentioned earlier, if cod liver oil is used to prevent rickets, when the amount of vitamin D reaches the therapeutic level, vitamin A has far exceeded the required amount, which often leads to vitamin A accumulation poisoning. The onset of vitamin A poisoning is slow. Common symptoms include alopecia, dry skin, itching, loss of appetite, seborrheic dermatitis, irritability, dry mouth, hepatosplenomegaly and increased intracranial pressure. Vitamin D can also cause poisoning, often manifested as loss of appetite, nausea and vomiting, hypercalcemia, renal insufficiency and so on. In case of cod liver oil poisoning, stop taking medicine immediately and go to the hospital for treatment. It can be seen that it is unnecessary for children to eat cod liver oil for a long time, but it is also harmful. This is something that young parents can never ignore.