Iodine deficiency and iodine excess are both not good

Expert views
    The Ministry of Health next year, the appropriate amount of reduction current of iodized salt, according to local conditions, and appropriate guidance, science iodine. So how do we iodine in daily life more scientific? Iodine, thyroid and thyroid disease, and how is each affected? Shanghai Jiao Tong University Sixth People's Hospital Department of Endocrinology, Li Ming, deputy director of Physicians for this clear up doubts.

    Q: Why do we need the body of iodine?
Answer: Iodine is an essential trace element, one involved in thyroid hormone synthesis. Thyroid hormone on human growth, development, protein synthesis, tissue differentiation and energy metabolism plays an important role, and enhance the excitability of the nervous system.
Q: one day need to be supplemented iodine?
A: The Chinese Dietary Reference Intakes provided for adults suitable for daily intake of iodine is 150 micrograms, pregnant women and lactating women is 200 micrograms per day, tolerable upper intake level of 1000 micrograms per day. Main sources of iodine are seaweed, seafood and so on.
Q: Iodine What is the impact on the human body?
A: Iodine deficiency may promote thyroid hyperplasia feedback manner, leading to suffer from goiter. Severe iodine deficiency, may suffer from hypothyroidism. The intention of adding iodine in salt is to combat iodine deficiency disorders such as endemic goiter, cretinism, etc., to prevent the "big neck disease" and to improve children's IQ has been a sense of universal iodine supplementation of the two arguments.
Q: Why is iodine deficiency and iodine can lead to goiter?
A: The epidemiological data indicate that iodine deficiency and iodine goiter rate will be higher when the crowd when the urinary iodine "45 mg / day, goiter and urine iodine is inversely proportional to; as urinary iodine" 1000 micrograms / day , goiter and urine iodine into a positive correlation, showing U-shaped curve.
Q: hyperthyroidism in patients with iodine to bogey do?
A: hyperthyroidism patients must pay attention to food and drink bogey iodine, avoid eating seafood, such as: kelp, seaweed, jellyfish, seaweed, sea fish and shrimp, etc., preferably non-iodized salt consumption.
Q: What are the long-term intake of iodine excess will be harmful? Cause cancer do?
    A: In addition to long-term intake of excessive iodine can occur with hyperthyroidism, but also can occur hypothyroidism, Hashimoto's thyroiditis and other hazards. Due to the occurrence of cancer by a combination of factors, at present there is no convincing evidence that excessive iodine and causal relationship between cancer.