What type of thyroid Cancer do you have and what part of the world do you live in? In seems that the Midwest states have the highest rate of thyroid cancer and thats why the Mayo Brothers setup shop in MN. My father had papillary thyroid but had to due surgery because it grew threw the windpipe. Anyway we have been following the Dr. Budwgi diet of flaxoil and sulphur proteins along with with Green Drinks, Goji Berries, Blue & Black Raspberry into a protein shake a couple times a day with the flaxoil. The flaxoil works with the sulphur proteins making it more water soluble to enter the cells. It delivers oxygen to the cells which cancer cells don't like.
It seems why people in the midwest have thyroid problems is because of the lack of Iodine. Do some more research into this.