Sorry, but sea veggies & seafoods are NOT recommended because of contamination & toxins. http://breastcancerchoices.org/seaweed
Seafoods were a great option 100 years ago, but not today. Also you cannot eat enough seafoods to detox the body.
The doctor recommended supplements are Lugols Liquid & Iodoral tablets. Also 50mg daily is the recommended dosage if there is no deficiency disease. Much more in cases of deficiency disease.