Hey, that's a good one, Doris! Dawn, I looked up an official list of cruciferous veggies - just so I wouldn't miss any out. Here goes!
Arugula, Broccoli, cauliflower, brussels sprouts, cabbage,watercress, bok choy, turnips and turnip greens, mustard greens, collard greens, rutabaga, Napa or Chinese cabbage, Daikon, radishes, Kohlrabi, kale
That's the most extensive list I could find. Remember, it is o.k. to eat them in small amounts or cooked (but who would want to cook a radish?!) On the bright side, coconut in any form is supposed to increase thyroid activity.