Bananas - This versatile fruit is rich in B vitamins and magnesium, which is said to help the thyroid.
Oats - It's not hard to cozy up with a hot breakfast of oatmeal in the winter, but the fiber in the oats will keep you feeling warm, and full, until lunch.
Coconut oil - Coconut oil's medium-chain fatty acids are easy to absorb as a source of energy.
Green tea - A steamy mug of green tea is already appealing in the winter, but the antioxidant flavonoids.