Since 1994, China has been promoting universal consumption of iodized salt, a state policy that is apparently much easier to implement than the state policy of family planning. According to a sample survey in 2008, the national coverage rate of iodized salt reached 97.48%. But in recent times, there has been a sudden overwhelming outburst in the media questioning and criticizing this policy. One commentator even went so far as to describe the introduction of iodized salt as “an unacceptable act of centralization” and “an indication that our society still believes in an omnipotent ‘all-powerful society'” from a political standpoint. “The government has called for “the right to not eat iodized salt”. The iodine protection is not available to 10,000 newborns. Some commentators claim that the state should leave the right to iodine supplementation to the people themselves, who are free to choose according to their own situation. This sounds very nice, but it is just an empty statement. People usually do not pay attention to whether their iodine intake or that of their family members is sufficient or not, and whether they should take special iodine supplements. Once iodine deficiency has caused intellectual damage to infants and children, it is too late to regret it. Universal salt iodization is not only effective in preventing iodine deficiency disorders, but it is also extremely inexpensive, with the World Health Organization estimating that the additional cost per person per year is only 5 cents, which is almost negligible. The World Health Organization is therefore confident that the elimination of iodine deficiency disorders will be as great an achievement as the eradication of smallpox and polio. Hopefully, this great process will not come to naught because of the spitefulness of some Chinese commentators. The introduction of iodized salt is not the same as the elimination of non-iodized salt. Some people are not physically fit to eat iodized salt, or commentators are free to defend their right not to eat iodized salt. In areas with high iodine levels, there is no need to push iodized salt. However, if people in these areas are concerned about excessive iodine intake, the first thing to worry about is seafood. The iodine content of sea fish ranges from 163 to 3180 micrograms kilograms, with an average of 832 micrograms kilograms; the iodine content of shrimp and shellfish ranges from 308 to 1300 micrograms kilograms, with an average of 798 micrograms kilograms, which is far more “harmful” than iodized salt. 2009.8.17. (China Youth Daily 2009.8.19) For comments, please go to http:xysblogs.orgfangzhouziarchives5693Li Yuechun, Department of Oncology, Dongguan People’s Hospital This is not a policy with Chinese characteristics, but a quick response by the Chinese government to the UN’s call for the elimination of iodine deficiency disorders through universal salt iodization. Many countries had already done so before that. The first to do so were Switzerland and the United States, which are not exactly “carte blanche societies” and have been eliminating iodine deficiency since the 1920s, where no one seems to have complained that “we don’t even have the right to eat natural salt. “. The initiator of the iodized salt debate was a retired professor from the Zhejiang University School of Medicine, who complained to the media that iodized salt “is a pest. The professor gave us a calculation: according to a report by the Chinese Nutrition Society, the average daily salt intake of Chinese urban residents is 11 grams, while rural residents reach 17 grams, “which means that based on the 20-50 micrograms of iodine per gram of salt in most iodized salt currently on the market, the daily iodine intake of Chinese people reaches a staggering 220-850 micrograms, which far exceeds the WHO limit of 200 micrograms. The World Health Organization’s safety line of 200 micrograms per day.” Since 1994, China has been promoting universal consumption of iodized salt, a state policy that is apparently much easier to implement than the state policy of family planning. According to a 2008 sample survey, the national coverage rate of iodized salt had reached 97.48 percent. But in recent times, there has been a sudden overwhelming outburst in the media questioning and criticizing this policy. One commentator even went so far as to describe the introduction of iodized salt as “an unacceptable act of centralization” and “an indication that our society still believes in an omnipotent ‘all-powerful society’. This shows that our society still believes in an omnipotent ‘totalitarian society'” and calls for “giving me back my right to not eat iodized salt”. In 1993, the World Health Assembly passed a resolution calling on countries to eliminate iodine deficiency disorders through universal salt iodization. Many countries had already done so before that. The first to do so were Switzerland and the United States, which are not exactly “carte blanche societies” and have been eliminating iodine deficiency since the 1920s, where no one seems to have complained that “we don’t even have the right to eat natural salt. “. The initiator of the iodized salt debate was a retired professor from the Zhejiang University School of Medicine, who complained to the media that iodized salt “is a pest. The professor gave us a calculation: according to a report by the Chinese Nutrition Society, the average daily salt intake of Chinese urban residents is 11 grams, while rural residents reach 17 grams, “which means that based on the 20-50 micrograms of iodine per gram of salt in most iodized salt currently on the market, the daily iodine intake of Chinese people reaches a staggering 220-850 micrograms, which far exceeds the WHO limit of 200 micrograms. the safe line of 200 micrograms per day set by the World Health Organization.” With the title of medical school professor, this sounds quite authoritative, but the math is not right. According to WHO estimates, iodized salt loses 20% of its iodine content from the factory to the point of sale, and another 20% during the cooking process, which means that the daily iodine intake of Chinese people from iodized salt is actually only 140-540 micrograms, which is not so amazing anymore. Moreover, the World Health Organization does not draw a safety line of 200 micrograms per day. The WHO recommendation is that adults should consume 150 micrograms of iodine per day, increasing to 200 micrograms for pregnant and lactating women. The iodine content of iodized salt is based on this recommended amount, taking into account depletion and salt intake. This is a recommended amount, not a safety line, and failure to meet this amount may make the body deficient in iodine, while exceeding it may not be unsafe. For example, the title of medical school professor may sound authoritative, but the math is not right. According to WHO estimates, iodized salt loses 20% of its iodine content from the factory to the sales process, and another 20% during the cooking process, which means that the daily iodine intake of Chinese people from iodized salt is actually only 140 to 540 micrograms, which is not that amazing anymore. Moreover, the World Health Organization does not draw a safety line of 200 micrograms/day. The WHO recommendation is that adults should consume 150 micrograms of iodine per day, increasing to 200 micrograms for pregnant and lactating women. The iodine content of iodized salt is based on this recommended amount, taking into account depletion and salt intake. However, according to the survey, the iodine intake in the United States, Canada and some European countries is about 500 micrograms per day, which far exceeds the safety limit set by the professor, and I have not seen their medical school professors exclaiming that “it is a harmful thing”. So what is the WHO’s safe limit? It is 30 micrograms of iodine per kilogram of body weight per day. For a 60 kg person, that’s 1,800 micrograms per day. Excess iodine is easily excreted from the urine through the kidneys, and many people who consume more than this safety line each day do not experience adverse effects. Japanese people usually consume as much as 2,000 to 3,000 micrograms of iodine per day due to the large amount of seaweed with very high iodine content in their diet. Some people make it sound very scary to eat too much iodine, saying that it increases the incidence of thyroid cancer, which is unsubstantiated. It is quite possible that some people have attributed the increase in thyroid disease in some areas of the country in recent years to the introduction of iodized salt. This has also been found in foreign countries, where the incidence of hyperthyroidism increases when iodized salt is introduced in iodine-deficient areas. This is actually a “natural reaction” of the body. Iodine is a component of the thyroid gland. In an iodine-deficient environment, the body has to increase the size of the thyroid gland in order to synthesize a sufficient amount of thyroxine, so once the iodine intake becomes sufficient, the thyroid gland is unable to regulate it for a while, and the secretion of thyroxine becomes excessive, and hyperthyroidism occurs. However, this is a temporary phenomenon, and after a while the size of the thyroid gland and the amount of thyroxine produced will become normal. There are a few people who are particularly sensitive to iodine, and the intake of excessive, even recommended, amounts of iodine can induce thyroid disease, although this condition is manageable and treatable. Conversely, the consequences of iodine deficiency are much more serious. When it comes to iodine deficiency, people generally know that they will get “big neck disease” (goiter), but after all, this disease can be treated and reversed, so it is not very scary. The most serious consequence of iodine deficiency is the effect on mental development. If a pregnant woman is iodine deficient, irreversible damage to the brain of the fetus and infant will occur, which in turn will lead to irreversible mental retardation. Children who are iodine deficient will also have a serious impact on their intellectual development and learning ability, and will have a low IQ. Even in cases of moderate iodine deficiency, the IQ of children is reduced by 10-15. iodine deficiency is the most important preventable factor leading to mental retardation. The World Health Organization estimated in 1994 that nearly 1.6 billion people worldwide live in iodine deficient environments and that 20 million people are severely impaired as a result. In 2007, the WHO estimated that China had an annual deficiency of 121.9 This is the recommended amount, not the safe line, and failure to meet this amount may result in iodine deficiency, but exceeding it may not be unsafe. For example, according to the survey, the iodine intake in the United States, Canada and some European countries is about 500 micrograms per day, which far exceeds the safety line set by the professor, and I have not seen their medical school professors exclaiming that “it is a harmful thing”. So what is the WHO’s safe limit? It is 30 micrograms of iodine per kilogram of body weight per day. For a 60 kg person, that’s 1,800 micrograms per day. Excess iodine is easily excreted from the urine through the kidneys, and many people who consume more than this safety line each day do not experience adverse effects. Japanese people usually consume as much as 2,000 to 3,000 micrograms of iodine per day due to the large amount of seaweed with very high iodine content in their diet. Some people make it sound very scary to eat too much iodine, saying that it increases the incidence of thyroid cancer, which is unsubstantiated. It is quite possible that some people have attributed the increase in thyroid disease in some areas of the country in recent years to the introduction of iodized salt. This has also been found in foreign countries, where the incidence of hyperthyroidism increases when iodized salt is introduced in iodine-deficient areas. This is actually a “natural reaction” of the body. Iodine is a component of the thyroid gland. In an iodine-deficient environment, the body has to increase the size of the thyroid gland in order to synthesize a sufficient amount of thyroxine, so once the iodine intake becomes sufficient, the thyroid gland is unable to regulate it for a while, and the secretion of thyroxine becomes excessive, and hyperthyroidism occurs. However, this is a temporary phenomenon, and the size of the thyroid gland and the amount of thyroxine secretion will become normal after a while. According to the survey, the iodine intake in the United States, Canada and some European countries is about 500 micrograms per day, which far exceeds the safety limit set by the professor, and I have not seen their medical school professors exclaiming that “it is a harmful thing”. So what is the WHO’s safe limit? It is 30 micrograms of iodine per kilogram of body weight per day. For a 60 kg person, that’s 1,800 micrograms per day. Excess iodine is easily excreted from the urine through the kidneys, and many people who consume more than this safety line each day do not experience adverse effects. Japanese people usually consume as much as 2,000 to 3,000 micrograms of iodine per day due to the large amount of seaweed with very high iodine content in their diet. Some people make it sound very scary to eat too much iodine, saying that it increases the incidence of thyroid cancer, which is unsubstantiated. It is quite possible that some people have attributed the increase in thyroid disease in some areas of the country in recent years to the introduction of iodized salt. This has also been found in foreign countries, where the incidence of hyperthyroidism increases when iodized salt is introduced in iodine-deficient areas. This is actually a “natural reaction” of the body. Iodine is a component of the thyroid gland. In an iodine-deficient environment, the body has to increase the size of the thyroid gland in order to synthesize a sufficient amount of thyroxine, so once the iodine intake becomes sufficient, the thyroid gland is unable to regulate it for a while, and the secretion of thyroxine becomes excessive, and hyperthyroidism occurs. However, this is a temporary phenomenon, and after a while the size of the thyroid gland and the amount of thyroxine produced will become normal. There are a few people who are particularly sensitive to iodine, and the intake of excessive, even recommended, amounts of iodine can induce thyroid disease, although this condition is manageable and treatable. Conversely, the consequences of iodine deficiency are much more serious. When it comes to iodine deficiency, people generally know that they will get “big neck disease” (goiter), but after all, this disease can be treated and reversed, so it is not very scary. The most serious consequence of iodine deficiency is the effect on mental development. If a pregnant woman is iodine deficient, irreversible damage to the brain of the fetus and infant will occur, which in turn will lead to irreversible mental retardation. Children who are iodine deficient will also have a serious impact on their intellectual development and learning ability, and will have a low IQ. Even in cases of moderate iodine deficiency, the IQ of children is reduced by 10-15. iodine deficiency is the most important preventable factor leading to mental retardation. The World Health Organization estimated in 1994 that nearly 1.6 billion people worldwide live in iodine deficient environments and that 20 million people are severely impaired as a result. In this regard, China is particularly affected, and in 2007, the WHO estimated that another 121.9 per year in China. A small number of people are particularly sensitive to iodine, and the intake of excessive, or even recommended, amounts of iodine can induce thyroid disease, although this condition is manageable and treatable. Conversely, the consequences of iodine deficiency are much more serious. When it comes to iodine deficiency, people generally know that they will get “big neck disease” (goiter), but after all, this disease can be treated and reversed, so it is not very scary. The most serious consequence of iodine deficiency is the effect on mental development. If a pregnant woman is iodine deficient, irreversible damage to the brain of the fetus and infant will occur, which in turn will lead to irreversible mental retardation. Children who are iodine deficient will also have a serious impact on their intellectual development and learning ability, and will have a low IQ. Even in cases of moderate iodine deficiency, the IQ of children is reduced by 10-15. iodine deficiency is the most important preventable factor leading to mental retardation. The World Health Organization estimated in 1994 that nearly 1.6 billion people worldwide live in iodine deficient environments and that 20 million people are severely impaired as a result. In 2007, the WHO estimated that 1.129 million newborns in China were not protected from iodine each year. In 2007, the World Health Organization estimated that 1.129 million newborns were not protected from iodine. Some commentators claim that the state should leave the right to iodine supplementation to the people themselves, who are free to choose according to their own situation. This sounds very nice, but it is just an empty statement. People usually do not pay attention to whether their iodine intake or that of their family members is sufficient or not, and whether they should take special iodine supplements. Once iodine deficiency has caused intellectual damage to infants and children, it is too late to regret it. Universal salt iodization is not only effective in preventing iodine deficiency disorders, but it is also extremely inexpensive, with the World Health Organization estimating that the additional cost per person per year is only 5 cents, which is almost negligible. The World Health Organization is therefore confident that the elimination of iodine deficiency disorders will be as great an achievement as the eradication of smallpox and polio. Hopefully, this great process will not come to naught because of the spitefulness of some Chinese commentators. The introduction of iodized salt is not the same as the elimination of non-iodized salt. Some people are not physically fit to eat iodized salt, or commentators are free to defend their right not to eat iodized salt. In areas with high iodine levels, there is no need to push iodized salt. However, if people in these areas are concerned about excessive iodine intake, the first thing to worry about is seafood. The iodine content of sea fish ranges from 163 to 3180 micrograms kilograms, with an average of 832 micrograms kilograms; the iodine content of shrimp and shellfish ranges from 308 to 1300 micrograms kilograms, with an average of 798 micrograms kilograms, which is far more “harmful” than iodized salt. Some commentators claim that the state should leave the right to iodine supplementation to the people themselves, so that they can choose freely according to their own situation. This sounds very nice, but it is just an empty statement. People usually do not pay attention to whether they or their family members take enough iodine or not, and whether they should take special iodine supplements. Once iodine deficiency causes intellectual damage to infants and children, it is too late to regret. Universal salt iodization is not only effective in preventing iodine deficiency disorders, but it is also extremely inexpensive, with the World Health Organization estimating that the additional cost per person per year is only 5 cents, which is almost negligible. The World Health Organization is therefore confident that the elimination of iodine deficiency disorders will be as great an achievement as the eradication of smallpox and polio. Hopefully, this great process will not come to naught because of the spitefulness of some Chinese commentators. The introduction of iodized salt is not the same as the elimination of non-iodized salt. Some people are not physically fit to eat iodized salt, or commentators are free to defend their right not to eat iodized salt. In areas with high iodine levels, there is no need to push iodized salt. However, if people in these areas are concerned about excessive iodine intake, the first thing to worry about is seafood. The iodine content of sea fish ranges from 163 to 3180 micrograms/kg, with an average of 832 micrograms/kg, while the iodine content of shrimp and shellfish ranges from 308 to 1300 micrograms/kg, with an average of 798 micrograms/kg, which is far more “harmful” than iodized salt. This state policy is obviously much easier to implement than the state policy on family planning. According to a sample survey in 2008, the national coverage rate of iodized salt reached 97.48%. But in recent times, there has been a sudden overwhelming outburst in the media questioning and criticizing this policy. One commentator even went so far as to describe the introduction of iodized salt as “an unacceptable act of centralization” and “an indication that our society still believes in an omnipotent ‘all-powerful society'” from a political standpoint. This shows that our society still believes in an omnipotent ‘totalitarian society'” and calls for “giving me back my right to not eat iodized salt”. In 1993, the World Health Assembly adopted a resolution calling on countries to eliminate iodine deficiency disorders through universal salt iodization. Many countries had already done so before that. The first to do so were Switzerland and the United States, which are not exactly “carte blanche societies” and have been eliminating iodine deficiency since the 1920s, where no one seems to have complained that “we don’t even have the right to eat natural salt. “. The initiator of the iodized salt debate was a retired professor from the Zhejiang University School of Medicine, who complained to the media that iodized salt “is a pest. The professor gave us a calculation: according to a report by the Chinese Nutrition Society, the average daily salt intake of Chinese urban residents is 11 grams, while rural residents reach 17 grams, “which means that based on the 20-50 micrograms of iodine per gram of salt in most iodized salt currently on the market, the daily iodine intake of Chinese people reaches a staggering 220-850 micrograms, which far exceeds the WHO limit of 200 micrograms. the safe line of 200 micrograms per day set by the World Health Organization.” With the title of medical school professor, this sounds quite authoritative, but the math is not right. According to WHO estimates, iodized salt loses 20% of its iodine content from the factory to the point of sale, and another 20% during the cooking process, which means that the daily iodine intake of Chinese people from iodized salt is actually only 140-540 micrograms, which is not so amazing anymore. Moreover, the World Health Organization does not draw a safety line of 200 micrograms per day. The WHO recommendation is that adults should consume 150 micrograms of iodine per day, increasing to 200 micrograms for pregnant and lactating women. The iodine content of iodized salt is based on this recommended amount, taking into account depletion and salt intake. This is the recommended amount, not a safety line. Failure to meet this amount may cause iodine deficiency in the body, but exceeding it may not be unsafe.