Fang Zhouzi: It is not so terrible to eat the iodine excessively

Fang Zhouzi: It is not so terrible to eat the iodine excessively

Caricature about iodized salt
China began to pursue the whole people to eat with iodized salt from 1994, this state basic policy was obviously much easier than the implementation of the state basic policy of birth control. According to the spotting check of 2008, the coverage rate of national iodized salt has already been up to 97.48%. But recently, the unexpected side falls down to the ground, breaks into querying, criticizes the voice of this policy on the media.
One editorial house stand height in politics even, pursue iodized salt regard " one let the intersection of people and different to accept the intersection of centralization and behavior " as ," prove our society still believes in an omnipotent type ' authorized society ' " ,Call upon " return I take with iodized salt right " Yun Yun.
In fact this is not a policy with Chinese characteristics, but the fast reaction that Chinese Government appeals for the United Nations. In 1993, World Health Assembly passed a resolution, required the method that various countries added the iodine with the whole people's salt to eliminate iodine deficiency. Before this, a lot of countries have already done so. Among them why that do so first is exactly not to counted as either " The authorized society " Switzerland and U.S.A., they, adding already by iodine the whole people salt from century the twenties, eliminate iodine deficiency, seem not to hear someone complain there " we do not eat the right of the natural salt in succession " .
The promoter who condemns the iodized salt is a retired professor of Zhejiang University medical college this time, accuse iodized salt to the media " It is a thing of victimization " . This professor has calculated an account for us: A report that China nutrition is learnt reveals, the intaking amount of Chinese urbanite's average daily salt is 11 grams, rural residents reach 17 grams, " this means, include 20~50 micrograms of iodine to calculate according to per gram of salt in most iodized salt at present on the market, Chinese take a photograph of every day iodine quantity has reached surprising 220~850 micrograms, far exceed the safety lines of 200 micrograms that World Health Organization delimits per day. "
There is title of the professor of medical college, seem to be rather authoritative, but this account has not got it right. According to the estimation of World Health Organization, iodized salt is from dispatching from the factory to sell the course and hit, the iodine content will lose 20%, in the course of cooking, will lose 20%, this means the iodine amount that the Chinese takes in from iodized salt every day is 140~540 micrograms in fact, not so surprising. Moreover, World Health Organization has not delimited the safety lines of 200 micrograms per day. The suggestion of World Health Organization is that an adult should take in 150 micrograms of iodine every day, pregnant woman and women breast-feeding their children should rise to 200 micrograms, the iodine content of iodized salt is considered consuming and intaking amount of salt and made according to this giving a recommendation amount.
This is giving a recommendation amount, it is not a safety line, may make the body lack the iodine if reach this quantity, it may not be unsafe to go beyond and settle. For example, according to the investigation, the intaking amount of iodine of U.S.A., Canada and some European countries is probably 500 micrograms every day, far exceed the safety line that this professor delimited, has not seen their professor of medical college crying out in alarm it is " a thing of victimization " either . Then what is the safety line that World Health Organization delimits? It is per kilogram of weight and 30 micrograms of iodine every day. To a person of weight of 60 kilograms, it is 1800 micrograms every day. The excessive iodine is very easy to discharge from the urine through the kidney, a lot of person iodine quantity of absorption every day has exceeded this safety line, have not presented the bad reaction. Japanese edible marine alga very tall in iodine content of generous ground because in the diet, the iodine quantity of taking a photograph of every day is usually up to 2000~3000 micrograms.
Someone excessive to speak very terrible to take iodine, say, increase morbidity, thyroid gland of cancer, this is a one without evidence. Someone pursues because the increase of thyroid gland disease in some domestic areas in recent years iodized salt, this will be probably. Has found this kind of situation abroad too, when the iodine lack the area to pursue iodized salt, the morbidity of hyperthyroidism will increase. This is actually one kind of the human body " The natural response " . The iodine is a composition of the thyroid gland, in the environment which is short of iodine, the human body, in order to formate the thyroxine of enough quantity, have to increase the volume of the thyroid gland, take a photograph of the iodine quantitative change sufficiently, the thyroid gland can not be still regulated over for the moment, the secretion amount of the thyroxine is too much instead, will appear first overbearing. But this is a temporary phenomenon, after a while the size of the thyroid gland and secretion amount of thyroxine will become normal.
There are a few people very sensitive to the iodine, the iodine which takes in excessive even recommendation quantity will bring out thyroid gland disease, but this kind of situation can be controlled, can be treated. On the contrary, the scarce consequence of iodine is much more serious. Mention the iodine is scarce, common people all know that will catch " goitre " (thyroid gland is swelling) ,In fact this kind of disease can also be treated, reversed after all, it is not very terrible. The most serious consequence of iodine deficiency is the impact on intelligence development. If pregnant woman lacks the iodine, the brain of foetus, baby will present the irreversible damage, and then cause the irreversible intelligence obstacle. If children lack the iodine, intelligence development, learning ability will be seriously affected, the IQ is low. Even under the condition that intermediate to lack the iodine, children's IQ will be reduced by 10~15. It is the main preventing the factor which causes the intelligence obstacle that the iodine lacks. World Health Organization estimated, nearly 1,600 million people lived in lacking the iodine environment in the whole world in 1994, 20 million people's intelligence is severed. In this respect, China is especially serious. In 2007, World Health Organization estimates there are 1,219,000 neonates not to protect by iodine every year in China.
Some editorial home claims the country should give ordinary people oneself the right to enrich the iodine, according to one's own situation free choice. Sounds very pleasant, but only an empty verbiage. It is enough where common people can look out for oneself or the family and take a photograph of iodine quantity at ordinary times, whether should enrich the iodine specially. It is injured that the iodine lacks the intelligence to baby, children once cause, it is too late to regret. The whole people's salt adds the iodine not only effective to preventing iodine deficiency, but also extremely cheap, according to the estimation by World Health Organization, the increased for each person every year expenses have 5 cents only, can nearly ignore. So World Health Organization is very confident in eliminating iodine deficiency, and regard it as and eliminate the achievement with likewise great variola, poliomyelitis. I wish this great process will not be because of some saliva of China editorial home irrevocably lost.
It is not equal to stopping soon not to have iodized salt pursuing iodized salt. Some people's health is not suitable for taking iodized salt, or does not eat iodized salt in order to defend one's own right life or death in the editorial family, it is free also there should be it. In the high iodine area, and
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