Thyroid Health Supplements
By Dr (TCM) Attilio D'Alberto | Traditional Chinese Medicine Practitioner, Wokingham
The thyroid gland regulates metabolism, temperature, energy, mood, weight, and the menstrual cycle. Thyroid dysfunction — particularly hypothyroidism — is significantly underdiagnosed, and even subclinical hypothyroidism (mildly elevated TSH with normal T4) can cause meaningful symptoms and impair fertility. In traditional Chinese medicine, thyroid dysfunction is most often understood as kidney yang deficiency or spleen qi deficiency, and responds well to a combination of targeted supplementation, acupuncture, and Chinese herbal medicine.
Iodine
Iodine is essential for thyroid hormone synthesis — without it, the thyroid cannot produce T3 or T4. Deficiency is one of the most common causes of hypothyroidism globally, though it is less prevalent in the UK due to iodine in dairy and seafood. Iodine supplementation is only appropriate where deficiency is confirmed; excessive iodine can paradoxically worsen thyroid function. Good dietary sources include dairy, eggs, seaweed, and fish. Pregnant women need higher iodine intake and should ensure their prenatal supplement contains it.
Selenium
Selenium is the most important micronutrient for thyroid health after iodine. It is essential for the conversion of inactive T4 to active T3, and it protects thyroid tissue from oxidative damage. Research has shown that selenium supplementation (200mcg daily) significantly reduces thyroid antibody levels in Hashimoto's thyroiditis and improves T3/T4 ratios. The UK population is often selenium-deficient due to low soil selenium levels. Brazil nuts (two per day) provide a therapeutic dose.
Zinc
Zinc is required for thyroid hormone production and for the conversion of T4 to T3. Deficiency impairs thyroid function and is associated with hair loss — a common complaint in hypothyroidism. Zinc also supports progesterone production in the luteal phase, making it doubly relevant for women with both thyroid issues and luteal phase defects.
Vitamin D
Vitamin D deficiency is strongly associated with autoimmune thyroid disease, including Hashimoto's and Graves' disease. Optimising vitamin D levels (targeting 100–150 nmol/L) reduces the inflammatory autoimmune drive that damages the thyroid in Hashimoto's. Most people in the UK are deficient, particularly in winter, and supplementation with 2,000–4,000 IU daily is generally safe and appropriate.
Ashwagandha
Ashwagandha (Withania somnifera) is an adaptogenic herb with clinical evidence for raising T3 and T4 levels in subclinical hypothyroidism. It also reduces cortisol — important because chronic stress suppresses thyroid function by increasing reverse T3 and impairing T4-to-T3 conversion. In TCM terms, it is a kidney yang and kidney jing tonic, addressing the same root deficiency that underlies hypothyroidism.
TCM Treatment for Thyroid Dysfunction
The most common TCM pattern underlying hypothyroidism is kidney yang deficiency — insufficient warmth and metabolic energy producing cold intolerance, fatigue, weight gain, and sluggish digestion. Spleen qi deficiency frequently co-exists, contributing to fluid retention and dampness. Acupuncture points that tonify kidney yang — including GV 4 (Mingmen) and KD 3 — are combined with moxibustion for maximum warming effect. Chinese herbal formulas such as Jin Gui Shen Qi Wan address the kidney yang deficiency pattern directly. TCM treatment works best alongside conventional thyroid monitoring and does not replace levothyroxine where it is indicated.
To discuss thyroid health and fertility, contact me or book a consultation in Wokingham.
