Why a Low-Iodine Diet?
Thyroid cells in your body absorb iodine, which is contained in many foods. Your doctor may ask you to avoid certain foods and medicines that contain iodine for a few weeks before your ablation procedure, Tg testing or whole body scan (WBS). Doing so will deplete your body of its natural storage of iodine, allowing any remaining thyroid cells to better absorb the radioactive iodine given to you before these procedures. Be sure to let your doctor know if you've had CAT scans, angiograms, pyelograms, stent placements or any other x-ray procedures in the month before your test since some x-ray exams use iodine-containing chemicals that could interfere with your scan.1
Being on a low iodine diet can be challenging. However, there are several cookbooks available to help you select and prepare healthy, low iodine meals before your testing if your doctor thinks this is important for your care. Visit the following links for low-iodine meal-planning suggestions:
Foods to avoid that contain iodine2
Foods you can eat2
Please note: A low-iodine diet does not restrict sodium or salt. It only restricts iodized salt or sea salt. Any salt that is labeled non-iodized may be used freely.
Other tips: You may want to shop and freeze or store your ingredients before starting your diet to avoid being tempted by iodine-containing foods at the store.