Question: You can see the salt added with iodine and selenium in the supermarket, which is said to be good for children. Which one should you choose?

A: Since 1996, the national legislation stipulates that iodine must be added to salt. Therefore, even the salt added with other nutrients is iodized salt. At present, there are salts added with iron, zinc, selenium, high potassium and low sodium salts in the market, Zinc salt is suitable for most children, while iron salt is suitable for children with mild anemia or who do not eat meat 。 Whether selenium salt is applicable varies from region to region, If it is not a selenium deficient area, and there is enough food such as fish, meat, eggs and milk every day, it is not necessary to buy selenium salt 。 High potassium and low sodium salts are suitable for middle-aged and elderly people, hypertension patients and cardiovascular patients.