subject: What Are The Hazards of Excessive Iodine? [print this page] What Are The Hazards of Excessive Iodine?
World Health Organization (WHO) to set limits on the iodine intake of 200 mg / day, per gram of salt iodization standards is 20-50 mg and Canada, according to the Chinese Nutrition Society survey of residents in the 10.6 g of salt intake / day, so we calculated the average daily intake of iodine in the 220-800 mg, is clearly excessive intake side, not to mention eating seafood are also coastal areas of iodine intake. May 2009 from the Ministry of Health epidemiological survey of iodine excess, according to interest rates next year to reduce the amount of iodine. Salt is a franchise, there is no commercially available non-iodized salt, iodine-type unless the disease had been proven to fight the hospital to buy non-iodized salt in the Salt Company. Scientific method is whether the guidance of urinary iodine test results or reduce iodine iodine, apparently this is the individual can not do. I propose: to reduce salt consumption.
Salt intake of the average person now greatly exceeded the limit of 5 grams per day, down to the long-term risk of hypertension caused by sodium, so a reduction of consumption of iodized salt is the double benefit of a good thing, of course, according to the actual adjustments, such as the intake of hot sweat do not sweat more than 5 grams of salt, a bottle cap the amount of skin, including of course the salt in soy sauce and pickles.
Science iodine healthy, Lan Fu iodine product is lethal.
According to reports, the lack of iodine in the body can not be micro-nutrients, human development and health has an important role. Back in the '50s, my choice salt iodization based control measures, and successful experience. Because the human intake of salt can be physical conditioning, and not excessive intake. To this end, iodine to salt as a carrier, the same will also be physiological regulation. Nutrition research shows that the normal physiological requirement of iodine for adults is 75 micrograms per day, pregnant and lactating women, the physiological requirement of iodine is higher than the average adult, the physiological requirements for iodine of children less than adults. Even if no other food in the case of iodine, as long as the consumption of 5-15 grams per day of qualified iodized salt, the body can intake of 100 to 300 micrograms of iodine. Therefore, if in accordance with this standard, the scientific use of iodized salt, iodine malnutrition may play a preventive effect on iodine nutrition good people will not cause harm.
Many people know that iodine useful intelligence, but they do not know if too much iodine, also harmful to health. As with the low iodine are harmful iodine, iodine can cause goiter and other adverse reactions.
Harm to human iodine deficiency is likely to cause varying degrees of mental retardation normal, especially for pregnant women, infants and young children, iodine deficiency can cause intellectual development of children in the critical period (especially during pregnancy to 2 years old) irreversible intellectual impairment .
Although iodine deficiency cause serious harm, but the universal consumption of iodized salt by the simple, safe, effective and economic measures to prevent iodine supplementation. If the daily consumption of 6-10 grams (about 1 small spoon) salt, iodine intake to meet the body's needs. In addition, some of iodine eat more kelp, marine fish, seaweed, shrimp and other foods can also prevent iodine deficiency disorders. Another child in the feeding iodine to be scientifically and reasonably, should be mainly from food, not too much consumption of iodized salt.
Experts remind that iodine, like with the health hazards of low-iodine, iodine can cause goiter and other adverse reactions, or even result in iodine induced hyperthyroidism. Therefore, people in daily life should be moderate consumption of iodized salt, too much too little is no good, while the purchase of salt, be sure to purchase a designated trademark, logo affixed qualified iodized salt.
Excessive iodine intake is too low against iodine deficiency disorders are caused, but iodine excess can also impact on the health of the body. Excessive iodine intake on human health hazards include the following:
The impact of iodine on thyroid function is the most common cause iodine goiter (IH) and iodine hyperthyroidism.
The impact of iodine on intelligence of iodine excess and the relationship between intelligence only in recent years, scholars have only attracted attention. Carried out in the crowd a number of epidemiological investigations have shown that iodine was significantly lower than the IQ of the students in iodine area. Most animal studies also been shown to excess iodine load can indeed reduce the weight of animal brain, learning and memory decline, although this effect was not as good as the role of iodine deficiency.
The impact of iodine on sexual function, a study has shown the U.S. intake of iodized salt and the male sperm counts have a certain relationship, suggesting that Americans may lead to man's consumption of iodized salt to reduce sperm count. In addition, there iodine excess fertility effects in rats repeatedly reported that excessive iodine can not be said that gives us an alternative concern.
Determination of iodized salt iodized salt samples were added with the potassium iodate solution and then acid and KI starch solution titration, just when the solution from colorless to blue, record the amount of starch solution and the liquid under test flasks the amount of content can be calculated in I2, which have scientific use of the content of potassium iodate salt iodized salt to be effective in prevention of iodine deficiency disease. We want science to consumption of iodized salt in order to improve the utilization of iodine.
First, the consumption of iodized salt Guizaijianchi. The human body is a long-term iodine supplementation, and daily life of the process, normal consumption of iodized salt should be kept, it is best to eat every day.
Secondly, the salt storage methods should be appropriate. Iodized salt should be stored in glass or ceramic pots, stamped with seals placed in the cold shade. Meanwhile, iodized salt should not go far, to be bought with food as appropriate. Before iodized salt was mixed with potassium iodide in table salt is made, but potassium iodide is easily oxidized in air, will cause the loss of iodine, and the price is expensive, so the country since 1989 without the provisions of potassium iodide in salt, plus change potassium iodate (KIO 3). Potassium iodate is a strong oxidant, in the air or exposed to light are not oxidized; and potassium iodate are ionic crystals, high boiling point, non-volatile, so do not have to cook in the pan before stressed or eat only salt. Some popular science articles stressed the preservation of iodized salt should be protected from light, cooking, avoid iodized salt should be late and so early, in fact, it refers to the potassium iodide, potassium iodate does not exist for these situations. Although iodized salt is not oxidized in the air, but to prevent them from being restored, we should pay attention to good people as a sealed high iodine intake per person per day recommended by the World Health Organization's salt intake is 6 grams, but Chinese nationals generally more than 20 grams. This requires also provide non-iodine salt for human choice, otherwise the risk of excessive iodine intake significantly.
