May 15 is the 22nd "IDD Prevention Day" in China. In recent years, the monitoring found that the consumption rate of qualified iodized salt in some coastal areas and big cities decreased, and the iodine nutrition of key populations such as pregnant women was low. In order to strengthen the propaganda of scientific iodine supplementation, guide the masses to make reasonable iodine supplementation, especially to avoid insufficient iodine intake of key groups such as pregnant women, fetuses and infants, the theme of this year's publicity is "Scientific iodine supplementation, focusing on 1000 days before life".
origin
China is a country with serious iodine deficiency. By 2007, there were 425 million people living in iodine deficiency environment, which involved a wide range and threatened many people, especially newly married women of childbearing age, pregnant women and babies. However, in real life, people are short of knowledge about the harm and prevention of iodine deficiency, so it is very urgent to popularize knowledge about disease prevention, improve self-care awareness and strengthen publicity and education in the current work of eliminating iodine deficiency disorders. Therefore, China proposed to designate May 15 as the National Day for Prevention and Treatment of Iodine Deficiency Disorders (IDD), in order to increase publicity and raise people's awareness of IDD.
harm
Iodine deficiency is a group of related diseases caused by iodine deficiency in natural environment. It includes endemic goiter, cretinism and sub-cretinism, simple deafness, fetal abortion, premature birth, stillbirth and congenital malformation. Strive for the World Health Organization, UNICEF and other international organizations to focus on prevention and control and eliminate malnutrition diseases within a time limit. Iodine deficiency disease mainly occurs in a specific geographical environment of iodine deficiency, which is obviously endemic and is listed as one of the endemic diseases in China. Because of its wide distribution and serious harm, it has become a serious public health problem and one of the diseases that the society pays attention to and the country eliminates within a time limit.
Why do people lack iodine?
The iodine needed by human body mainly comes from food. Due to the food chain, iodine deficiency in soil leads to iodine deficiency in plants and animals. People eat iodine-deficient foods, which leads to insufficient iodine intake. Iodine deficiency in natural environment actually refers to iodine deficiency in soil and water. During the Quaternary Glacier Period 8000- 18000 years ago, due to the dissolution of glaciers and the erosion of ice water, a large number of mature soils rich in iodine were washed away. However, the iodine content of the new soil formed by rocks is only a quarter of that of the original mature soil. This has led to iodine deficiency in most parts of the world. This is the main cause of iodine deficiency in soil in the world. Floods, desertification and rain erosion have caused iodine in some areas to be washed away with the soil, which has aggravated iodine deficiency. It is almost impossible for human beings to change the iodine deficiency in the natural environment. Only by taking iodized salt and other measures can iodine be supplemented.