May 15, 2022 is the 29th “Iodine Deficiency Disease Prevention and Control Day” in my country. This year’s theme is “Smart Life and Healthy Road, the First Step of Scientific Iodine Supplementation”< /strong>. It aims to publicize and popularize the knowledge of iodine deficiency disease prevention and scientific iodine supplementation, focus on publicizing the role of iodine on the brain development of fetuses and infants, guide the whole society to actively participate in the prevention and treatment of iodine deficiency diseases, improve the health of the people, and contribute to the construction of a healthy China.
Iodine Deficiency Prevention Day 2022
Promote core message
I. Iodine is an essential micronutrient for human metabolism and growth and development
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Iodine is a micronutrient necessary for metabolism and growth and development, and is the main raw material for the synthesis of thyroid hormones by the human body.
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Thyroid hormones participate in the body’s metabolism, maintain the normal function of all organs, and promote the growth and development of the human body, especially the brain.
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Children’s brain development begins when the mother is pregnant. The fetus and infancy (0 to 3 years old) are critical periods for a child’s brain development. If the child is deficient in iodine in the fetal period and infancy, it will affect the normal development of the brain, and cause serious cretinism, deafness, intellectual impairment, etc.
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All the iodine needed by the fetus comes from the mother. Insufficient iodine nutrition in pregnant women will cause iodine deficiency in the fetus. Severe iodine deficiency during pregnancy can lead to miscarriage, premature birth, stillbirth, and congenital malformations.
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Pregnant and breastfeeding women have significantly more iodine requirements than the general population, and need to supplement an appropriate amount of iodine in time.
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Iodine deficiency in adults may lead to hypothyroidism, fatigue, lack of concentration, and reduced productivity at work.
Second, eating iodized salt is the easiest, safe and effective way to prevent iodine deficiency disorders
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Iodine deficiency disease is a general term for a series of diseases that occur due to insufficient iodine intake in the human body due to iodine deficiency in the external environment. Before the elimination of iodine deficiency disorders in my country in 2000, 5% to 15% of children in iodine deficiency wards had mild intellectual disability (IQ 50 to 69), and 6.6‰ of them suffered from endemic cretinism, which seriously affected the quality of the local population.
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Iodine deficiency is preventable, and the easiest, safe and effective way to prevent it is to eat iodized salt.
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The external environment (water, soil, etc.) in most parts of my country is almost deficient in iodine, especially in mountainous areas, hills, river valleys, desertified areas and river scouring areas. The status quo of iodine deficiency in the external environment is difficult to change. If iodine supplementation is stopped, the iodine stored in the human body can be maintained for up to 3 months. Therefore, it is necessary to insist on eating iodized salt for a long time.
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Since 2016, my country has carried out full coverage monitoring in counties every year, and the results show that the iodine nutrition of the population is generally within the appropriate range.
Third, there is currently no direct evidence that consumption of iodized salt or increased iodine intake is associated with the occurrence of thyroid cancer
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In recent years, regardless of whether or not iodine supplementation measures are taken in major countries in the world, regardless of whether the iodine intake is increased, stable or decreased, the incidence of thyroid cancer has increased, and the incidence of thyroid cancer has been increasing, and the incidence of thyroid cancer has been increased, mainly with a diameter of less than 1.0 The microcarcinomas of centimeters increased predominately.
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A considerable number of thyroid microcarcinomas are characterized by indolent progression, low malignancy, and good prognosis. Patients should follow the clinician’s request for correct treatment or follow-up observation.
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Thyroid microcarcinomas have a high prevalence in the population, are occult and difficult to detect, and may accompany them for life. According to autopsy reports in many developed countries, the prevalence of undiscovered thyroid cancer is as high as 5.6% to 35.6%, of which microscopic cancer accounts for 67%.
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Research suggests that the current “epidemic” of thyroid cancer is partly attributable to thyroid screening, combined with the widespread use of high-resolution B-mode ultrasonography, resulting in an excess of occult or small cancers Diagnosis related.