There are two kinds of cod liver oil preparations. One preparation is an old preparation that has been used for many years. The ratio of vitamin A and D is 10:1, that is, the concentrated cod liver oil per ml contains vitamin A50000 units and contains vitamin D5000 units. Children need 1000A to 1500 units of vitamin A and 400 units of vitamin D. The ratio of the two is 3 to 4:1. If you take this old preparation to concentrate the cod liver oil to prevent rickets, give the baby 3 drops of cod liver oil daily, that is, eat vitamins. D400 ~ 500 units, but eat vitamin A5000 units, 4 to 5 times the amount of vitamin A required, vitamin A poisoning can occur over time. Artificial feeding from 2 weeks to 1 year and a half children can take vitamin D400IU (cod liver oil) daily, but pay attention to the vitamin D dose of dairy products and calcium preparations. Cod liver oil contains vitamins A and D. Vitamin A has protective effects on eyes and skin mucosa, and enhances immunity. Vitamin D promotes calcium absorption in milk. Vitamin D is rarely contained in food. It must be supplemented. The food source of calcium is preferably milk and products, and the others are beans, fish, shrimp, green vegetables, etc., all of which have problems of poor calcium absorption. Therefore, if the child can not guarantee to drink 400 ml of milk per day, it should be supplemented with 100-300 mg of calcium, but according to the child's ability to accept, if it affects appetite or causes constipation after taking it, stop or reduce the dose. In addition, from preventing osteoporosis in adults, enhancing calcium absorption is beneficial to the growth of children's teeth and bones, and is also conducive to the prevention of adult diseases in the future. The best time for your baby to supplement cod liver oil is between half a month and two years after birth. If your baby has no obvious signs of calcium deficiency, don't add extra calcium. Just eat 400IU-800IU of cod liver oil every day to 2 years old. By the age of three, this is a preventive amount, because breast milk and milk powder contain high levels of calcium, while vitamin D is low in content. Calcium can meet the needs of the baby's current body. Cod liver oil is used to promote calcium absorption, so it must be supplemented. Cod liver oil, and sun-irradiated skin is also the best way to absorb calcium. In summer, you can let your baby get more sun, two hours a day, but don't direct it in strong sunlight. Now it is necessary to add cod liver oil in winter. You can choose Ikexin. The absorption effect is good, and it can also be eaten together in the milk powder. When choosing a product, the key is not medical cod liver oil or natural cod liver oil, but to see whether it is a drug number or a health word, three batches of three grades, the requirements are different. Under normal circumstances, most doctors will recommend the product of the drug number. Of course, the product of the health name is not impossible to eat, but after all, the threshold for entry is lower, and the mother can purchase it according to the cost performance and taste of the product.
Leather is also called artificial leather, artificial leather. PU is the abbreviation of poly urethane in English, and the Chinese name, "polyurethane", is the Chinese name. The full name of the super fiber skin is "superfine fiber reinforced PU leather". He has excellent wear resistance, excellent cold resistance, air permeability and aging resistance.The pull rod box refers to a suitcase with a pull rod and a roller. Because of its convenient use, carry clothes and so on to become travel, go out and be widely used. At the same time, the pull rod box also has a pull rod for the box, and it has the single pipe pull rod and the double pipe pull rod. The pipe of the pull rod also has the square tube and the circular tube's separation, so as to facilitate the walking while dragging, and lighten the burden greatly.Pu luggage bag popular among travelers.
Pu Luggage Bags,Pu Luggage Trolley Bags,Leather Pu Luggage Bags,Pu Travel Luggage Bags Gaobeidian Pengjie Leather Goods Co., Ltd. , https://www.pengjieluggage.com