This morning, he was invited to Dalian Changhai County (Dachangshan Island, where the government is located) to give a functional department a scientific lecture on diet and nutrition. According to the survey when iodized salt is popularized, Changhai County is the only area in Dalian that does not lack iodine. According to the recommendation, areas without iodine deficiency should eat salt without iodine (no iodized salt), or at least both iodized salt and Iodized salt is for residents to choose independently. Because it has been recognized that excessive iodine can cause thyroid diseases, such as nodules, hyperthyroidism, and thyroid tumors.

How is the actual situation? Using the rest time in the middle, I ran to three larger supermarkets nearby, where only iodized salt was added (and the iodized amount is the standard iodine per kilogram of salt 35± 15 mg), I can’t buy iodized salt at all, and when I asked the salesperson, they told me in unison that iodized salt was better.

　　 I paid attention to the salt used in the canteen of the unit. They have just started to eat iodine-free salt recently because the leader’s physical examination was found to have thyroid nodules-I was very surprised. Of the 4 leaders and 1 driver I contacted, 2 actually had thyroid nodules, one of them had surgery, and the other was preparing for surgery, and they were all males-you know, before popularizing iodized salt, The incidence of thyroid disease in urban male residents is very low (usually more common in female patients), and now there are two in an office! They have a lot of seafood in the canteen recipe (it tastes great), and there is no shortage of iodine. With the addition of iodized salt, the amount of iodine is not excessive-the problem of excessive iodine should be vigilant (According to the report of Dalian Daily on April 18, the Dalian Municipal Health Department denied that Dalian had an iodine excess problem. Discussions on this issue, Please see this blog (Be careful about excessive iodine).

　　In order to avoid excessive iodine, it is recommended that the following people do not consume iodized salt and should eat non-iodized salt:

　　 1. Residents in non-iodine-deficient areas do not People who eat iodized salt, especially those in coastal areas like Changhai County and eat a lot of seafood (rich in iodine), especially do not eat iodized salt.

　　 2. Patients with hyperthyroidism, both men and women, because iodine stimulates thyroid hormone synthesis.

　　 3. Urban residents who found thyroid nodules on physical examination (because most cities have eliminated the "big neck disease"-endemic goiter caused by iodine deficiency, so urban residents found thyroid nodules , The possibility of iodine deficiency is extremely small, and the possibility of iodine excess is high).

　　 4. In patients with thyroiditis (Hashimoto''s disease), iodine will stimulate the inflammation to increase.

　　 5. Patients with thyroid tumors (regardless of whether they have had surgery).

　　 6. Patients with thyroid cancer (except those who have undergone total thyroidectomy).

　　 7. Patients with hypothyroidism (hypothyroidism) have been controversial, but now tend to limit iodine intake.

　　 8. Other thyroid diseases (in fact, there is only one thyroid disease-big neck disease that requires iodine supplementation, the rest of the thyroid diseases are not necessary to supplement iodine, otherwise it may be counterproductive).

　　People who want to buy iodized salt, please go to a special iodized salt sales point, please consult your local salt company for specific location. In addition, the above-mentioned people should not eat kelp, seaweed, wakame and other seaweeds that contain a lot of iodine. In fact, everyone who eats iodized salt should stop eating kelp, seaweed, wakame and other seaweeds. For more information, please refer to the popular science book "Dietary Nutrition for Thyroid Diseases and TCM Rehabilitation" to be published by the People''s Military Medical Press.

　　 must declare that this blog does not oppose the basic policy of compulsory consumption of iodized salt, but also agrees that most people (including myself) should consume iodized salt, but I strongly call for attention to the problem of iodine excess, even Only a small proportion of people have excessive iodine, and they still need to pay attention to it and take active and effective measures to stop the occurrence of iodine excess. Ignoring the problem of iodine overdose, it is terrible to sacrifice the health of a small number of people for the sake of the health of most people.