How to eat iodized salt safe?
1. Rational consumption of iodized salt according to physical conditions Different populations require different amounts of iodine, for example, women are more susceptible to iodine deficiency than men. The amount of iodine needed by a person at different times is also different. Children and adolescents are fast growing and have a large demand for iodine. The demand for iodine in women during development, pregnancy, and lactation is also different, especially during pregnancy and lactation, which is the peak period of iodine demand. Iodine intake is also related to health conditions, such as patients with hyperthyroidism do not need to eat iodized salt, because iodine supplements will increase thyroid hormone synthesis, exacerbating the disease. Patients with other thyroid diseases who can eat iodized salt must be prescribed by a doctor and decide on their own to exacerbate the condition. World Health Organization recommended iodine intake 90 micrograms per day for children aged 7 years, 120 micrograms for children aged 7 to 12 years, 150 micrograms for patients over 12 years old, and 200 micrograms for pregnant and lactating women; 100 to 200 micrograms is sufficient, 200 to 300 micrograms is excessive, 300 micrograms or more It is overweight. 2. Determine whether to eat iodized salt according to the living area Looking at the “Risk Assessment Report on China's Salt Iodine Plus Residents' Iodine Nutrition Status†released by the Ministry of Health in 2010, you can find out whether your place of residence is iodine-deficient, iodized, or high-iodine. Then, in conjunction with its own iodine intake, it is decided whether to eat iodized salt. For example, if you live in areas with high iodine levels— Shandong, Shanxi, Henan, Hebei, Beijing, Tianjin, Anhui, Jiangsu, and Inner Mongolia, 9 counties (cities, districts) and 735 towns in 109 counties, the iodine intake is higher in peacetime. The level of urinary iodine is also higher, then do not eat iodized salt, and eating will have the risk of excessive iodine intake. According to a survey conducted in 2009, the risk of iodine deficiency in pregnant women in coastal cities in Shanghai, Zhejiang, and coastal areas in Fujian is high. Therefore, local "quasi-mothers" should pay attention to iodine supplementation. Urine iodine level distribution in China Urine iodine is less than 100g/L (iodine deficiency) in two provinces, Hainan and Tibet. There are 9 provinces, autonomous regions, and municipalities with 100~200g/L (appropriate level). They are Heilongjiang, Shanghai, Zhejiang, Fujian, Guangdong, Gansu, Qinghai, Xinjiang and Xinjiang. 200~300g/L (greater than the appropriate amount) of 16 provinces and regions, including Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Jiangsu, Jiangxi, Shandong, Hunan, Chongqing, Sichuan, Guizhou, Shaanxi, Ningxia . More than 300g/L (overdose of iodine) is found in 5 provinces and regions, namely Anhui, Henan, Hubei, Guangxi, and Yunnan. The above results suggest that most provinces (16) are at "greater than appropriate levels"; a few provinces (5) are at excessive levels of iodine; only 9 provinces are at an appropriate level. Therefore, it is necessary to appropriately lower the iodine content of iodized salt, but it is not appropriate to reduce it drastically, but to slightly lower it. - According to the Ministry of Health's "Iodized salt content of edible salt (Consultation Draft)" 3. Dietary iodized salt according to diet Also eating iodized salt, different eating habits will make a great difference in iodine intake. Salty people eat iodized salt intake of iodine is relatively high. For example, the average person in Shaanxi Province eats 17.85 grams of salt a day, and the amount of iodine that is added to iodized salt is 4 times the recommended amount. Therefore, iodized salt should be eaten less. People in areas with high iodine drinking local water can meet 90% of the daily iodine intake, so they do not eat iodized salt to meet their own needs for iodine. However, if all the food is bottled water or pure water that is not a local water source, the situation has changed, and iodized salt may be needed. For another example, I live in Shanghai, which is an area suitable for iodine. Iodine salt is basically eaten in the cafeteria when I go to work, and I eat at home for two days every week, mainly vegetables and seafood. From the dietary intake point of view, my iodine intake exceeds the recommended amount, close to the maximum intake, and multiple urinary iodine test is around 200 micrograms/liter, which exceeds the appropriate amount. Therefore, I use non-iodized salt at home to regulate my iodine nutritional status.
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