I think the best answer to the question of whether to add iodine to salt should be no, because too much iodine intake is bad for your health. Salt is a necessity in our life, so we should pay special attention to its intake. People with high blood pressure and poor cardiovascular system should eat less salt and iodized salt. It is not necessary to eat iodized salt in coastal areas, but people in some iodine-deficient areas can consider choosing iodized salt. In the market, iodized salt is cheaper than non-iodized salt. Maybe you will ask why you have to spend money when things are short. That's because the salt extracted from seawater itself contains iodine, so the salt without iodine needs to be extracted and purified again to get rid of iodine. This process still costs money, so it is understandable why salt without iodine is expensive.

In the past, there was a lot of news about salt. During the SARS period, some people even bought a lot of salt and kept eating it, but they didn't finish it for several years. This news makes people feel angry and funny. The efficacy of salt actually depends on your physical needs. So we don't add anything to our daily necessities, because eating too much is bad for our health. Don't eat iodized salt in areas where there is no iodine deficiency. It is not alarmist that some people suffer from physical diseases because they eat too much iodized salt.

Some people choose to buy cheap salt to eat, in order to lose money. Actually, it's not. You'd better choose the one that suits you. Don't just focus on immediate interests, but also see your own health.