1, the effect is different.
Literally, we can see the most essential difference between the two kinds of salt: whether there is iodine in the composition, iodine is one of the essential trace elements for human body, iodized salt can effectively increase the intake of iodine for human body and improve people's health level, while non-iodized salt is an edible salt without adding any iodide, which can only provide sodium but cannot supplement iodine.
2. According to different groups
Due to the vast territory and different soil and water conditions in China, people in different regions have different needs for iodine. Generally speaking, residents in areas with low water iodine and areas with low iodine intake are more prone to iodine deficiency, so iodized salt should be preferred, while residents in areas with high water iodine and areas with high iodine intake do not need additional iodine supplementation, so non-iodized salt can be chosen. In addition, some special people should also choose the appropriate salt according to their own situation.
Method of selecting high-quality edible salt
1, see the quality grade on the refined salt outer packaging bag.
First of all, you can look at the quality grade on the refined salt outer packaging bag. The higher the grade, the finer the quality of refined salt. Now refined salt can be roughly divided into three types, excellent grade, first grade and second grade. Excellent grade > first grade > second grade, the higher the grade, the less impurities.
2. Look at the product composition table
We all know that the main component of edible salt is sodium chloride. If some refined salt packaging bags are marked with ferrous potassium chloride, then this salt is edible salt with chemical additives. The main function of potassium ferrous chloride is to prevent the refined salt from caking, which is also the reason why refined salt is not worried about caking after being placed in the exposed environment for one year. But this kind of edible salt with chemical additives is really not recommended for people to eat often.