When the thyroid gland overproduces thyroid hormones (as diagnosed by a blood test), the body’s metabolism becomes overactive. The general symptoms include irritability, heat, increased perspiration, insomnia, and fatigue; less frequent are increased flow of menstruation, rapid digestion and bowel movements, and malabsorption of nutrients. Goiter can also develop. (Underactive thyroid is discussed below.)
Ground and support the body with “earthy” foods like barley, rice, millet, quinoa, and all the root vegetables, particularly the sweeter ones like carrot, parsnip, and sweet potato. Also eat plenty of cabbage, brussels sprouts, cauliflower, kale, mustard greens, and watercress to suppress excess thyroid hormone production.
Try eating six small meals rather than three large meals a day.
Avoid dairy products and all stimulants, including tea, coffee, and alcohol.
Avoid seaweeds, particularly bladder wrack and kelp, as they contain iodine which will overprovoke the thyroid.
The nervous system needs to be treated with sedatives to calm and feed it. Use chamomile flower, skullcap leaf, and even valerian root as a short-term measure. More specific treatments may be needed according to the individual situation.
Immune-system and adrenal debility is often the cause (or an added problem), so echinacea root and Siberian ginseng root are useful.
Take hormonal tonic herbs: chaste tree berry for both women and men, or saw palmetto berry for men (or both for both sexes) with fenugreek seed and a little Chinese licorice root.
The liver, colon, and entire endocrine system will need individual assistance and support for overall balance
This Natural Hyperthyroidism Treatment article is taken from :
The complete home guide to herbs, natural healing, and nutrition / Jill Rosemary Davies.