Natural Thyroid Health

Natural Thyroid Health

Are you feeling like you have no energy and don’t understand why? The reason could be your thyroid.

What does the thyroid do?

The thyroid gland is like our speedometer, controlling our basal metabolic rate (BMR) (3). We have receptors to thyroid hormones in every cell of the body, basically telling them to speed up or slow down. The thyroid is stimulated by the hypothalamus-pituitary-axis which is a negative feed back loop. The thyroid hormones T3 and T4 are made from the amino acid tyrosine and the mineral iodine (4). T4 is the main hormone produced but the T3 has a much stronger action, T4 is converted to T3 mainly in the liver, but also in the kidneys, heart, nerves and muscles, 20% is converted to T3 by bacteria in the digestive system (3). If your cold then thyroid increases the BMR to create more heat, if your sick the thyroid accelerates the action of your immune system (3). The thyroid is also essential for foetal development, and normal growth of teeth, bones, hair, skin as well as normal functioning of the cardiovascular system, nervous system and gastrointestinal system (4)


Hypothyroid is when the thyroid is under functioning. Common signs and symptoms of hypothyroid may include:

If you feel like you have some of these symptoms then your thyroid could be the reason. Many doctors do thyroid testing that only looks at TSH, this can give a false negative. As the thyroid and it’s interaction with other endocrine systems is a complex process – proper thyroid testing will always be inclusive of TSH, T3, T4 as well as thyroid antibodies and reverse T3.


  1. Kumar, P., and Clarke, M. 2005 Clinical Medicine, 6th edition, Elsevier Books, New York.
  2. Chistiakov, D. 2005 Immunogenetics of Hashimoto’s thyroiditis; Clinical and Subclinical Features, Journal of Autoimmune Diseases 2:1 doi:10.1186/1740-2557-2-1
  3. Kharrazian, D 2010, Why Do I Still Have Thyroid Symptoms? When my lab tests are normal. Elephant Press, Carlsbad.
  4. Hiller-Sturmhöfel, S., Bartke, Ph.D. 1998, The Endocrine System An Overview, Alcohol Health & Research World, Vol. 22, No. 3, 1998 p 152-164