Kelp is seaweed and is rich in nutrients, including the mineral iodine, a necessary cofactor for the production of thyroid hormone. If you are not iodine sensitive, consider including seaweed in your diet.
Coconut oil is rich in medium chain fatty acids (MCFAs), also known as medium chain triglycerides (MCTs). It offers benefits to sufferers of hypothyroidism by increasing the metabolism as well as promoting weight loss.
Food allergy is thought to play a role in hypothyroidism, especially those with autoimmune disorders. Food sensitivities are suspected to interfere with endocrine function through antibody formation.