In a narrow sense, cod liver oil 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. 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 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.
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.
major constituent
1, the chemical name of squalene (CQALENE) C3hexaene.
Oxidize cells, promote metabolism, repair and regeneration.
2. Hydrocarbon glycerol (AKG)
Enhance immunity, resist radiation and cancer.
3.EPA and DHA
Clean blood vessels and promote fat metabolism.
4, vitamin A, vitamin E
therapy
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 we pay enough attention to it in our daily life, it is entirely possible for children to take obscene cod liver oil instead of taking it in four situations:
1. The mother has insufficient breast milk and 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;
indicate
1. Used as a nutritional agent for tuberculosis patients, convalescents after illness and infants and parturients.
2. Used for night blindness, rickets, dry eye, rickets and other patients lacking vitamins A and D. ..
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Squalene, the main component of shark liver oil, 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.
Picture of cod liver oil
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 gold
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%. 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.
DHA, AA and the Development of Brain and Vision
DHA (brain gold) and AA (arachidonic acid) are both 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 of 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
The first stage (0-6 months formula)
Each capsule contains: Va-600IU, Vd-300IU, DHA-30mg；; ;
Norwegian cod liver oil
The second stage (June-65438+February formula)
Each capsule contains: Va-600IU, Vd-300IU, DHA-35mg；; ;
Three (1-3 years old formula)
Each capsule contains: vitamin a-900 international units, vitamin d-300 international units and DHA-35 mg.
Product specification
I-segment 60-granule package
The second part contains 20 capsules and 60 capsules.
The third section contains 20 capsules and 60 capsules.
consume
Take one capsule once a day.
The way to eat
Oral. 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. British cod liver oil +AKGs+DHA was developed by Royal Nutrition Research Center.
Application of cod liver oil
The fourth generation of healthy and nutritious baby food. The organic combination of pollution-free cod liver oil from northern Europe and Norway and Australian shark cod liver oil, together with the Australian deep-sea tuna oil extract rich in omega-3 series unsaturated fatty acid -DHA, helps the baby's retina development, promotes calcium absorption and brain development, and contains precious immune factor AKGs, which lays a good foundation for the baby's resistance. Made of high-tech capsule kneading technology, the formula is scientific and reasonable, and it is convenient to eat. It is the first healthy food for babies.
Australian shark liver oil-naturally rich in magical immune factors-alkoxyglycerol AKGs, protects sharks from diseases and grows healthily. Breast milk also contains alkoxyglycerol, which has a natural protective effect on infants.
DHA is an extract of Australian deep-sea tuna oil, which is naturally rich in Omega-3 series unsaturated fatty acids, which is helpful for the development of baby's retina and brain. People call DHA "brain gold".