link to pdf & excerpts (scroll to page 4):
http://www.cc.nih.gov/ccc/patient_education/pepubs/lo_io_diet.pdf- 124.7KB - NIH Clinical Center
This information is based on written inquiry in January 2009. While manufacturing practices may change, we suggest that this information is reliable. Please check the NIH Clinical Center website for the most uptodate information. We will make every attempt to confirm the use of noniodized salt by these manufacturers once a year. We can also provide references if you ask for them.
What if the brand of the food I want to eat is not on this list?
This list does not name all food companies or their brands. By including a company on this list, NIH is in no way endorsing them.
The guideline is that foods by large manufacturers/ companies are generally prepared with noniodized salt. Foods prepared by smaller companies have a greater risk for containing iodized salt and being high in iodine.
Another helpful pdf link (LID food list):
http://www.cc.nih.gov/ccc/patient_education/pepubs/lo_ioi_list.pdf- 98.1KB - NIH Clinical Center