Effects of 1 and high iodine on thyroid function

Long-term iodine excess can increase the risk of hypothyroidism and hypothyroidism.

2. The influence of high iodine on intelligence.

A number of epidemiological surveys in the population show that the IQ of students in high iodine areas is significantly lower than that in iodine-suitable areas. Most animal experimental studies have also proved that excessive iodine load can indeed reduce the weight of animals' brains and reduce their learning and memory, although this effect is not as obvious as that of iodine deficiency.

3. Effect of high iodine on sexual function.

A study in the United States has shown that the intake of iodized salt has a certain relationship with men's sperm count, suggesting that Americans eating iodized salt may lead to a decrease in men's sperm count.

Extended data

Scientific use of iodine:

Iodized salt can effectively prevent iodine deficiency disorders. But it is necessary to eat iodized salt scientifically to improve the utilization rate of iodine.

First of all, it is important to insist on eating iodized salt. Iodine supplementation is a long-term, daily and daily process. Normal people should often eat iodized salt, preferably every day. Secondly, the storage method of iodized salt should be appropriate. Iodized salt should be stored in glass or ceramic cans, sealed and placed in a cool place at low temperature. At the same time, iodized salt should not be stored for a long time, and it is advisable to buy it with food.

In the past, iodized salt was made by mixing potassium iodide into table salt. However, because potassium iodide is easily oxidized in the air, it will cause iodine loss and the price is expensive. Therefore, since 1989, China has stipulated that potassium iodide should be added to table salt instead of potassium iodide. Potassium iodate is a strong oxidant, which will not be oxidized in the air or when exposed to light. Moreover, potassium iodate is an ionic crystal with high boiling point and no volatility, so it is unnecessary to add salt before cooking or eating. Although iodized salt will not be oxidized in the air, in order to prevent it from being reduced, it is better to keep it sealed.

Baidu encyclopedia-iodized salt

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