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.
Fermented foods such as sauerkraut are wonderful in that they provide probiotics and bio-available nutrients. However, consuming large amounts of sauerkraut could actually be harmful to the function of your thyroid, especially if your thyroid is already compromised.