Definition of supernal. 1  1a : being or coming from on highb : heavenly, ethereal supernal melodiesc : superlatively good supernal trumpet playing. 2  2 : located in or belonging to the sky.
Organic Foods. Organic eggs, oranges, grapefruit, lemons, vegetable juices, beef liver and kidney and sprouts derived from organic seeds are believed to increase thyroid activity, according to The Natural Health Place, a healthy living website.
Foods to eat to boost thyroid function: 1  Iodine rich foods: Read a previous blog on iodine and its richest sources â seaweed. 2  Brazil nuts are very high in selenium, which is needed to convert the thyroid hormone T4 to T3. Eat 2 per day and make sure they are activated. 3  Tyrosine rich foods.