Your thyroid is a small organ that significantly impacts all aspects of your health. Thyroid hormone impacts every cell in your body, so even a small disturbance in thyroid hormone levels affects your digestive tract, brain, heart, metabolism, glucose, weight, energy, cholesterol levels, and much more.
Yet, despite their importance, thyroid problems are one of the most underdiagnosed conditions in the world. As many as 60% of people who have thyroid problems aren’t aware of them! By some estimates, up to one in 10 North Americans have a thyroid problem, and that number rises to one in eight for women. That’s a lot of people experiencing health issues that could be helped through thorough thyroid testing and naturopathic treatment!
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Symptoms of Low Thyroid Function or Hypothyroidism
For many people, low levels of thyroid hormone (a condition referred to as hypothyroidism) are the problem. Some of the symptoms of hypothyroidism include:
- Weight gain or difficulty losing weight
- Chronic fatigue
- Always feeling cold
- Infertility
- Dry skin
- Hair loss
- Fuzzy thinking
- Depression
- Constipation
To further complicate matters, many thyroid treatments fall spectacularly short when improving a patient’s quality of life. Part of the problem is having inadequate diagnostic tools. Traditionally, conventional medical practitioners run two tests for thyroid hormone levels: Thyroid Stimulating Hormone (TSH) levels and thyroid hormone thyroxine (free T4). Then, they place patients on thyroid hormone replacement. This bypasses the thyroid, and that doesn’t get to the root of the problem.
When blood tests show a dip in thyroid hormone levels, thyroid hormone replacement therapy drugs, such as levothyroxine, are very commonly prescribed.
Growing evidence suggests thyroid hormone replacement is over-prescribed and may even increase a patient’s risk of mortality.
Those that clearly have low thyroid levels (hypothyroidism) benefit from this medical treatment, however, the problem may lie in those who may have only a few, mild symptoms of hypothyroidism and come back with borderline test results, known as subclinical hypothyroidism. This may occur in older adults in particular.
Studies show that people aged 65 and over who have been given thyroid replacement therapy have an increased risk of death. Due to the many changes that naturally begin to occur in older adults, such as sleep changes and increased inflammation, natural dips in thyroid levels may occur. Thyroid replacement medication in these cases may not be necessary and, if taken, may override said changes, therefore causing further complications.
Why thyroid medication may not be the best solution
Focusing solely on TSH and T4 levels and then replacing thyroid hormone ignores the fact that the most common cause of hypothyroidism is an autoimmune disease called Hashimoto’s. When someone experiences Hashimoto’s, their immune system erroneously attacks their thyroid, leading to damage to the tissue and a reduction in thyroid hormone secretion.
We haven’t yet determined the cause of autoimmune diseases, although evidence suggests genetic factors, inflammation, certain medications, and stress can all contribute. Studies have also found possible connections between “leaky gut” syndrome, or increased gut permeability, and the autoimmune system.
Because of the vague causes of autoimmune disorders, traditional medicine tends to treat just the symptoms without taking a holistic approach to addressing overall health. This is particularly true for Hashimoto’s, which is problematic. Without proper treatment, the immune system will continue to attack the thyroid gland, making it increasingly difficult to treat without addressing the autoimmune response. Once one autoimmune condition crops up, others may follow if you don’t address the underlying cause.
The problem with thyroid testing
As you can see, thyroid problems and treatments are much more complex than fixing a hormone shortage, as determined by testing TSH and T4. Patients need more comprehensive assessments for better results and a more holistic treatment plan. Below are five causes of thyroid problems that standard tests won’t detect.
Pituitary problems
The pituitary gland, located at the base of the brain, releases TSH, which controls thyroid hormone production. Elevated cortisol levels can damage the pituitary gland, reducing TSH and, consequently, thyroid hormone (free T4).
Poor conversion of T4 to T3
To be used by your body, T4 must be converted to another hormone, triiodothyronine, commonly called T3. If this process doesn’t run smoothly, your body won’t have its optimum amount of T3, even if your T4 test results look good. An excess of the stress hormone cortisol in your body can impact this process.
High TBG levels
Thyroid hormone travels through your bloodstream thanks to a protein called Thyroxine Binding Globulin (TBG). High TBG levels can lower the amount of active thyroid hormone since T4 is inactive when bound to TBG. Excess estrogen can result in elevated TBG levels, which can lead to hypothyroidism, even if the results of the traditional tests are within the normal range.
Low TBG levels
Paradoxically, low TBG levels can also lead to hypothyroidism. That’s because low levels result in excess free T4 in the blood, which causes cells to develop resistance. The result is hypothyroidism since, although there is enough thyroid hormone in the blood, the body’s cells aren’t receptive to it. Common causes of low TBG levels include high testosterone levels and insulin resistance.
Thyroid resistance
High levels of T4 or T3 or high levels of cortisol can damage the receptors in your cells. Chronic stress can also lead to harmful HPA axis dysfunction.
Optimum thyroid performance depends on a tightly woven interplay of processes, and, as shown above, just one imbalance can throw the whole thing off.
Traditional tests don’t always recognize the various factors that contribute to thyroid problems. If you want to learn more about your thyroid health, call me at 416-481-0222!
Book NowThyroid Testing Information Sources
Stoll K. Disparities in Thyroid Screening and Medication Use in Quebec, Canada. Health Equity. 2019;3(1):328-335. Published 2019 Jul 11. doi:10.1089/heq.2018.0051
Mu Q, Kirby J, Reilly CM, Luo XM. Leaky Gut As a Danger Signal for Autoimmune Diseases. Front Immunol. 2017;8:598. Published 2017 May 23. doi:10.3389/fimmu.2017.00598
Stratakis CA, Chrousos GP. Neuroendocrinology and pathophysiology of the stress system. Ann N Y Acad Sci. 1995 Dec 29;771:1-18. doi: 10.1111/j.1749-6632.1995.tb44666.x. PMID: 8597390.
Bernadette Biondi, David S. Cooper, The Clinical Significance of Subclinical Thyroid Dysfunction, Endocrine Reviews, Volume 29, Issue 1, 1 February 2008, Pages 76–131, https://doi.org/10.1210/er.2006-0043
Enoch Joseph Abbey, MD, MPH, Eleanor M Simonsick, PhD, John McGready, PhD, Jennifer Sophie Mammen, MD, PhD, OR18-05 Thyroid Hormone Use and Survival among Older Adults – Longitudinal Analysis of the Baltimore Longitudinal Study of Aging (BLSA), Journal of the Endocrine Society, Volume 4, Issue Supplement_1, April-May 2020, OR18–05, https://doi.org/10.1210/jendso/bvaa046.235
Dr. Pamela has practiced as a naturopathic doctor in Toronto since 1999. She has received numerous “Best Naturopath in Toronto” awards. She is registered with the College of Naturopaths of Ontario.
Dr. Pamela Frank uses a natural treatment approach that may include acupuncture, herbal medicine, nutrition, diet, vitamins, supplements, and other natural remedies to restore balance and provide long-term resolution to almost any health problem.
