HOW TO PREVENT THYROID CANCER
There is no possible way to prevent this type of cancer but you could lower your risks at having it. People with an inherited gene mutation that increases the risk of medullary thyroid cancer should have thyroid surgery in order to prevent it from happening. Other preventions would be to stay away from any radiation. Getting a blood test is also a helpful way to lower your risk so if you do have it you can treat it early
Low iodine diet
Another way is to have a low iodine diet. A low iodine diet includes eating foods like fish, shellfish, eggs, dairy products, onions, radishes, potatoes, bananas, parsley, and kelp.