Today, with my mother's questions, let's follow Xiaobian to listen to how the experts answered them.
Do you know the important functions of vitamin AD that the baby eats every day?
1, promote bone development and height growth: Vitamin D can promote calcium absorption and bone calcification to increase strength. The role of vitamin A is more important, which can promote the synthesis of protein, the differentiation of bone cells and the secretion of growth hormone, which is beneficial to the development of long bones and helps the baby grow taller.
2, improve resistance: vitamin A is called anti-infective vitamin, which maintains the barrier function of skin, respiratory tract and digestive tract mucosa, is the first line of immune defense of human body, and increases the body's defense function against germs. Vitamin A can also increase immune cell activity and antibody synthesis, while vitamin D helps to increase the number of phagocytes, and AD complements it to help babies improve their resistance.
3. Prevent and reduce the occurrence of anemia: Vitamin A can assist the transportation of stored iron, indirectly improve the hematopoietic function of bone marrow, and play a role in preventing iron deficiency anemia.
4. Promote visual development: Vitamin A is a component of the photosensitive substance "rhodopsin", and it is also an important substance to maintain the integrity of epithelial cells in eye tissues and organs. Lack of vitamin A will lead to decreased dark vision ability and decreased lacrimal gland secretion, which can seriously lead to eye diseases such as dry eye and night blindness, and also affect the baby's vision level.
What's wrong with the lack of such an important vitamin AD?
1, poor immunity, frequent colds, fever and diarrhea.
External manifestations: the baby's body is easily infected by germs, and he likes to get sick when facing changes in the external environment, especially when the season changes or the weather changes, he is prone to gastrointestinal diseases such as colds, fever and diarrhea.
The root cause: due to the lack of vitamin A, the mucous membrane is dry and keratinized, resulting in the destruction of the defense function of the skin, respiratory tract, digestive tract and other mucous membranes. The first line of defense of the human body against germs is damaged, and it is more vulnerable to the invasion of external germs, resulting in the baby's low body immune function and a significant increase in the incidence of diarrhea and respiratory tract infections.
2. Iron deficiency anemia occurs frequently.
External manifestations: Anemia is caused by iron deficiency in the body. At this time, mothers often take iron supplementation to their babies to prevent and treat anemia.
Root cause: vitamin A deficiency in the body will lead to limited iron synthesis and transport, resulting in frequent iron deficiency anemia. Vitamin A plays a decisive role in the synthesis of transferrin (responsible for transporting stored iron to hematopoietic organs) and heme, and indirectly promotes hematopoietic function. In the analysis of vitamin A nutritional status and the risk of anemia, medical experts found that children with vitamin A deficiency are more prone to anemia, vitamin A deficiency is an independent factor leading to anemia, and iron deficiency anemia and vitamin A are mutually coexisting.
3, short, slow growth and development
External manifestations: Due to the imbalance of daily diet, the body cannot absorb nutrients, resulting in stunted height development, which in turn affects the overall development of the body.
Root cause: Many parents know that vitamin D can promote the absorption of calcium and ensure the sufficient bone mass. However, the growth of height is mainly the growth and development of long bones. Vitamin A can enhance the cell activity in the epiphyseal cartilage of long bones, which plays an important role in promoting the growth of long bones. At the same time, vitamin A will also affect the secretion level of growth hormone. Medical research has found that there is a significant correlation between the level of vitamin A in plasma and the nocturnal growth hormone secretion, and the nocturnal growth hormone secretion of short children with vitamin A deficiency is reduced. In addition, vitamin A can also affect height growth by regulating thyroid hormone. In addition, if the baby's immunity and physique decline due to vitamin A deficiency, frequent colds or infections, resulting in dietary restrictions, it will inevitably affect the overall nutrient absorption, which is not conducive to height development, and will cause growth retardation and short stature.
4. Poor calcium absorption can lead to rickets.
External manifestations: Many parents think that bone diseases are caused by calcium deficiency, and blindly supplementing calcium for their babies leads to ignoring the problem of whether calcium is absorbed by the body.
The root cause: Rickets is a systemic, chronic and nutritional disease characterized by skeletal lesions, which is mainly caused by the deficiency of vitamin D in infants, children and adolescents. Under normal circumstances, the absorption rate of calcium will be less than 10% without the participation of vitamin D. Most babies with calcium deficiency symptoms are caused by vitamin D deficiency, not calcium deficiency. Vitamin A deficiency can reduce the calcium reabsorption capacity of glomerulus and indirectly affect the body's calcium absorption capacity.
After decades of nutritional intervention in China, the clinical deficiency rate of vitamin A has declined, and diseases such as dry eye and night blindness are rare. However, the subclinical deficiency rate of vitamin A in infants and children in China is still not optimistic. Some common problems of subclinical vitamin A deficiency still exist, such as poor immune function (diarrhea, frequent cold problems), iron deficiency anemia and other common diseases. It is very easy for mothers to simply think that it is caused by viruses, colds or insufficient iron intake, thus ignoring vitamin A supplementation.
Supplement your baby with vitamin AD. Never choose these products!
① The liver with fishy smell from the ocean is the detoxification organ, and with the serious marine pollution and the enrichment of big fish, the liver of fish is at risk of exceeding the standard of heavy metals. Compared with the so-called "natural cod liver oil", the chemically synthesized vitamin AD is more pure, safer for babies to take, and has no fishy smell, which is more in line with the baby's taste.
② Bottled drops: The physical and chemical properties of vitamin AD are unstable, and the bottled drops are easily oxidized and decomposed and polluted after repeated opening. When you choose, you must choose an independent package. It is convenient and hygienic to take 1 capsule every time, and the dosage is easier to master accurately.
③ Vitamin AD in transparent capsules is easily oxidized and decomposed by light and heat and air, which leads to failure. If it is not preserved properly, the nutrition will be lost quickly. Therefore, special attention should be paid to product packaging when selecting products, and capsules should be shaded (not transparent) to avoid oxidative decomposition and ensure the stability and effectiveness of vitamin AD, so as to ensure the baby's preventive effect.
④ The ratio is not up to standard (it does not meet the ratio of 3: 1 gold). Vitamins A and D are respectively added into the cosolvent according to the scientific ratio of 3: 1, which is made in strict accordance with the nutritional requirements of infants. It is clearly stipulated in China Pharmacopoeia. However, in some cod liver oil products, the ratio of vitamin A to vitamin D is 10: 1, so such products are not suitable for infants.
⑤ The content is not up to the standard (not up to the recommended amount). It is clearly recommended in the Prevention and Treatment Plan for Vitamin A Deficiency in Subclinical State, the Early Comprehensive Prevention and Treatment Plan for Rickets and the China National Prescription Collection (Children's Edition) that the newborn should be supplemented with vitamin AD every day from the 0/5th day of birth, and it is recommended to take vitamin A1500 IU-2,000 IU and vitamin D 4,000 daily orally. We should pay attention to the choice of products tailored for babies according to different age groups. Take Yikexin, which is known to all mothers, as an example. The two specifications fully meet the recommended dosage: green gourd-each capsule contains vitamin A 1500 international units and vitamin D500 international units, which is suitable for infants aged 0- 1 year; Powder gourd-each capsule contains vitamin A2000 international units and vitamin D700 international units, which is suitable for infants and expectant mothers over/kloc-0.
After careful explanation by experts, do mothers have a new understanding of vitamin AD supplementation? Only by supplementing your baby with vitamin AD every day can you help your baby grow up healthily and comprehensively!