1) Salt sold in China is mostly iodised as part of a national policy to prevent iodine deficiency disorders.

2) There are many people queueing to buy iodised salt in our store.

3) Comparison interventions included non - iodised salt, iodised water, iodised oil, iodation with potassium iodide versus potassium iodate.

4) The most common fortified food is iodised salt. Another example is the fortification of margarine with vitamin A.

5) Hence there is no iodine deficiency in school children as their diet includes iodised salt.

6) Conclusions The needs to be strictly controlled quality of iodised salt and market iodised salt plus iodised oil capsule thus can effectively reduce the prevalence of iodine deficiency disorders.

7) There are large differences in the availability and consumption of iodised salt, and in legislation, between countries.