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 Avoid. Goitrogenic foods are foods that interfere with iodine absorption, leading to an enlargement of the thyroid gland, otherwise known as the formation of a âgoiterâ. A steady stream of iodine is necessary to keep your thyroid running optimally. If you are having problems with low thyroid function, you can help your thyroid work better by making some adjustments to your diet, Some foods support your thyroid, while others could be hindering its function if you eat them frquently. So a few changes in your diet could make a big difference.