Vitamin AD poisoning symptoms?
summary
When it comes to vitamin AD preparation, the first thing that many mothers think of is yikexin. Doctors recommend taking it every day from the time of the baby's birth, and taking it continuously until the age of 3. However, as soon as I heard that I had to take it for a long time, many mothers muttered in their hearts. Is it really OK to take it for a long time? Why do you have to eat for such a long time? Vitamin A, in particular, is deliberately discredited and rumored on the Internet, which makes parents who know a little bit more "silly and unclear". So, what are the symptoms of vitamin AD poisoning? Let's talk about it.
Vitamin AD poisoning symptoms?
1. "No supplement" theory - developed countries only supplement D but not a. some parents heard that foreign babies only supplement D but not a, so they took it for granted that our babies do not need to supplement. However, due to the differences in dietary habits, dietary structure, economic level, climate conditions, and even race between China and developed countries such as Europe and the United States, and the relatively large reserves of calcium, iron, vitamin A and other nutrients in the whole body of residents in developed countries, vitamin A deficiency is not a common problem, so daily routine supplement is not recommended. In addition, from a global perspective, the nutritional status of vitamin A shows a correlation between the overall nutritional level and the economic level of various countries. The countries with ideal vitamin a nutritional level are mainly concentrated in Europe and the United States and other developed countries, while most of the developing countries in Asia and Africa are moderately and severely deficient. China is defined as a country with moderate vitamin A deficiency by the World Health Organization, and some of them are seriously deficient. Vitamin A deficiency is one of the most important nutritional factors affecting the occurrence of severe infection and death in children in China.
2. "Overdose" theory - taking vitamin A for a long time will lead to poisoning. Some mothers think that taking vitamin A for a long time will lead to poisoning, so they take intermittent supplement. However, various authoritative guidelines (prevention plan for subclinical vitamin A deficiency, early comprehensive prevention plan for rickets, and China National Formulary (children's Edition)) clearly suggest that infants should take vitamin a1500iu-2000iu and vitamin d400iu-800iu daily from the 15th day after birth, and persist until the age of 3, It is the most safe and effective to supplement vitamin AD according to this dose every day. In addition, the reference intake of dietary nutrients for Chinese residents (2013 Edition) and the textbook pediatrics have clearly stated that acute poisoning: a supplement of more than 300000 IU will lead to acute poisoning; Chronic poisoning: intake of 50000-100000 IU per day for more than six months may lead to chronic poisoning. Take the common icosin as an example (pink icosin contains vitamin a2000iu and vitamin d700iu), that is, taking hundreds of tablets at a time or taking dozens of tablets every day for half a year may lead to vitamin A poisoning. Therefore, as long as the parents according to the instructions to supplement the baby 1 capsule a day, there will be no excess phenomenon.
3. Theory of "food supplement" -- vitamin A in natural food is sufficient. Some parents advocate "nature", and some parents pursue "cost-effective", so they will go on the road of "food supplement" vitamin A. As everyone knows, tonic can not be added in place, make up the wrong will lead to disease. The main natural sources of vitamin A are animal liver, carrot and other yellow food, as well as dark green vegetables. Animal liver contains direct vitamin A, but as a detoxification organ, it has the risk of a large number of toxins, which is not suitable for babies to eat frequently, and high cholesterol is not conducive to health. Carrots and dark vegetables and other foods do not contain direct vitamin A, but in a form β Carotene (the precursor of vitamin A) exists in the form of carotene. The conversion rate of carotene into vitamin A in the human body is very low (less than 1 / 12), and the baby's food intake is limited, so it is unable to supplement enough from the food. In addition, eating too much carrot, pumpkin and other food rich in carotene, also easy to cause "carotenemia", make the skin yellow.
matters needing attention
In addition, vitamin AD supplement can effectively promote bone and tooth development. Vitamin D can promote the absorption of calcium and ensure that height has the basic bone mass, which is the guarantee of height growth; Vitamin A can promote the development of long bones (limbs), that is, promote the longitudinal development of bones. In May, the golden season of growing height, vitamin AD is the best nutritional supplement for your baby.
