Hypothyroidism Overview:

Hypothyroidism (also known as myxedema) is a common, but often asymptomatic condition affecting the metabolic processes throughout the body. This condition is far more prevalent in females than males, some reports suggesting as much as 6:1.

Due to the common lack of symptoms associated with early-stage hypothyroidism, diagnosing the condition primarily relies on lab testing. Thyroid function tests look for levels of TSH, T3, and T4. Autoimmune conditions affecting the thyroid like Hashimoto's disease are also common so labs will often test for antiobodies associated with this condition.

Hypothyroidism can cause significant drops in basal metabolic rate (up to 60%) resulting in unexpected weight gain, fatigue, and aversion to cold.

The most common cause for hypothyroidism is an autoimmune disease known as Hashimoto's thyroiditis. In this condition, white blood cells invade and attack the thyroid gland, which is one of the most vascular organs in the human body. This leads to a gradual destruction of the thyroid, and an interfereance of thyroid hormone production by antibodies.



+ Primary Hypothyroidism

  • Nutritional dysfunciton
  • Hashimoto's thyroiditis (autoimmune)
  • Postpartum (Transitory)
  • Subacute (Transitory)

+ Secondary Hypothyroidism

  • Hypothalamus dysfunction
  • TRH or TSH deficiency
  • Pituitary disorder




Weight Gain



Cold Intolerance


Dry Skin

Aches and pains

Menstrual disturbances

Preorbital oedema


Delayed muscle relaxation

Hair loss

Muscle aches



Primary hypothyroidism is demonstrated by an elevation of TSH, and low T4 or T3. 

Thyroid Function Testing

Condition TSH T4 T3
Healthy Normal Normal Normal
Hyperthyroidism (Primary) Low High High (first)
Hyperthyroidism (Secondary) High High High (first)
Hypothyroidism (Primary) High Low (first) Low
Hypothyroidism (Secondary) Low Low (First) Low

Normal Thyroid Hormone Ranges

Hormone Normal Range
TSH 0.4-5.0 mU/mL
Free T4 10-25 pmol/L
Free T3 4-8pmol/L

Therapeutic Aims:

1. Hormone Replacement Therapy

Not a herbal approach, but the best treatment currently available. Herbs offer supportive treatment alongside thyroid hormone replacement.

  • Iodine-containing herbs (Fucus vesiculosus)

2. Support The Cardiovascular System

Hypothyroidism leads to an increased chance of developing atherosclerosis.

  • Cardiovascular tonics (Crataegus spp., Ginkgo biloba, Allium sativum)

3. Symptomatic Relief For Associated Skin Conditions

  • Emollients (Althaea officinalis)
  • Circulatory Stimulants (Zingiber officinale)

4. Symptomatic Relief For Other Negative Side Effects Of Hypothyroidism


  • Hepatic Laxitives (Rumex crispus, Juglans cinerea, Rhamnus purshiana, Senna spp.)

5. Treat Autoimmunity (If Applicable)

If Hashimoto's thyroiditis is suspected, address with immunomodulators and immunosuppressants.

  • Immunomodulators (Ganoderma lucidum)

Differential Diagnosis:

  • Pituitary tumor


None noted.


Herbs For Hypothyroidism

  • Bladder wrack
  • Medicago sativa (Alfalfa)
  • Chondrus crispus (Irish moss)
  • Alaria esculenta (Kelp)

Hypothyroid Formula

Herb Name Ratio Amount in mL
Fucus vesiculosis 1:1 40 mL
Coleus forskohlii 1:1 35 mL
Withania somnifera 2:1 25 mL
Total 100 mL

Other Endocrine Conditions:


Justin Cooke

The Sunlight Experiment

Updated: June 2018


  1. Weatherby, D., & Ferguson, S. (2002). Blood Chemistry and CBC Analysis: Clinical Laboratory Testing from a Funtional Perspective. USA: Bear Mountain Publishing
  2. Melbourne haematology (2013) retrieved from http://www.melbournehaematology.com.au/pdfs/guidelines/melbourne-haematology-guidelines-iron-studies.pdf