First we’ll address the connection between kale and hypothyroid. Kale is a cruciferous vegetable — like broccoli, Brussels sprouts and cabbage to name a few. There has been some research showing that cruciferous vegetables can inhibit thyroid function when eaten raw. Most experts agree that if you’re getting enough iodine in your diet and you aren’t eating truckloads of these veggies each day, you don’t have anything to worry about. If you’re not sure, lightly steaming them reduces the risk even more.