Calcitonin – Normal Values in Women and Men and What You Need to Know About This Hormone

Have you ever heard of calcitonin? This hormone plays a crucial role in maintaining the health of your bones. In this article, you will discover what calcitonin is, what its normal levels are, and what it means when levels are elevated. Whether you are curious about your health or have been recommended a test, the information here will help you better understand this important aspect of your body’s functioning.

What is Calcitonin and What is Its Role?

Calcitonin is a hormone produced by the thyroid gland, playing an essential role in regulating calcium levels in your blood. When blood calcium (calcemia) increases, calcitonin comes into action. It stimulates the storage of calcium in the bones, thereby reducing its amount in the blood. This process is vital for maintaining the health of the skeletal system and for the normal functioning of the entire organism.

In addition to regulating calcium, calcitonin has other beneficial effects. It helps prevent bone resorption, a process by which bones lose density. Thus, this hormone contributes to maintaining the long-term strength of your bones.

Normal Calcitonin Levels

Normal calcitonin levels differ between men and women. For men, the normal level is below 8.4 pg/mL, while for women it is below 5.0 pg/mL. It is important to note that these values may vary slightly depending on the laboratory performing the test and the method used.

The interpretation of results should always be done in a clinical context. Even if your levels fall within the normal range, your doctor may consider other factors to assess your health status. Therefore, it is essential to discuss the results with your specialist.

Causes and Symptoms of Elevated Calcitonin

Elevated Calcitonin – Causes

Elevated calcitonin levels may indicate the presence of health problems. The most common cause is medullary thyroid cancer, a rare form of thyroid cancer. Other causes can include neuroendocrine tumors or kidney conditions. Generally, elevated calcitonin does not cause direct symptoms, but the conditions that cause this increase may have specific manifestations.

High Calcitonin – Symptoms

Symptoms associated with high calcitonin levels may include:

• Appearance of nodules in the neck
• Difficulty swallowing
• Voice changes
• Sensation of pressure in the throat
• Persistent cough without an apparent cause

It is important to know that the presence of these symptoms does not necessarily mean you have elevated calcitonin levels or a serious condition. However, if you notice any of these signs, it would be advisable to consult your doctor for a complete evaluation.

What Does Low Calcitonin Mean?

Low calcitonin levels in the blood are less frequently discussed, as calcitonin normally plays a minor role in calcium metabolism in adults. However, low levels can occur in certain situations or may signal some conditions. Here’s what low calcitonin can mean:

1. Reduced Thyroid Function

Hypothyroidism (reduced thyroid function) can lead to low calcitonin levels because the thyroid gland produces fewer hormones, including calcitonin.

2. Hypoparathyroidism

This condition, characterized by insufficient parathyroid hormone (PTH) production, can indirectly influence calcitonin levels, as both contribute to regulating calcium metabolism.

3. Destruction or Removal of the Thyroid Gland

In the case of a total thyroidectomy (complete removal of the thyroid gland), the C cells that produce calcitonin are eliminated, leading to the absence of this hormone.

4. Lack of Specific Stimulus

Calcitonin is normally secreted in response to an increase in blood calcium levels. If calcium levels are low or normal, calcitonin production may be reduced.

5. Normal Physiological Factors

In adults, calcitonin has a lesser influence on calcium metabolism, and low levels can be physiologically normal.

Associated Symptoms for Low Calcitonin

Generally, low calcitonin levels do not cause obvious symptoms because other hormonal mechanisms, such as parathyroid hormone (PTH) and vitamin D, largely compensate for calcitonin’s function in calcium regulation.

By understanding the role of calcitonin in regulating calcium levels in the body, you can appreciate the importance of adequate calcium intake for your bone health. In this context, calcium supplements may play an important role. A product worth your attention is Premium Oyster Calcium + D3.

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This supplement contains natural calcium extracted from oyster shells and vitamin D3, a combination that can effectively support the production and action of calcitonin in the body. By ensuring optimal intake of calcium and vitamin D3, you can contribute to maintaining a healthy balance of calcitonin and, by implication, to your bone health.

Understanding the role of calcitonin in your body is crucial for your overall health. This hormone, although less known than others, has a vital function in maintaining calcium balance and the health of your bones. If your doctor recommends a calcitonin test, do not hesitate to do it. The results can provide valuable information about your health status.

Remember that elevated levels do not always mean something serious, but they require further investigation. It is essential to always discuss the results with your doctor for correct interpretation and an appropriate action plan. Be proactive about your health and do not hesitate to ask questions or seek clarification when something is unclear to you.

In conclusion, calcitonin is a fascinating hormone that plays a crucial role in maintaining calcium balance in your body. Whether you are concerned about your bone health or simply curious about how your body works, understanding this hormone can provide you with valuable insights. Remember to take care of your health and be open to your doctor’s recommendations. With the right information and a proactive attitude, you can significantly contribute to maintaining an optimal state of health.

Medical References

1. Burtis, C. A., Ashwood, E. R., & Bruns, D. E. (2012). Tietz textbook of clinical chemistry and molecular diagnostics. Elsevier Health Sciences.
2. Costante, G., Meringolo, D., Durante, C., Bianchi, D., Nocera, M., Tumino, S., … & Filetti, S. (2007). Predictive value of serum calcitonin levels for preoperative diagnosis of medullary thyroid carcinoma in a cohort of 5817 consecutive patients with thyroid nodules. The Journal of Clinical Endocrinology & Metabolism, 92(2), 450-455.
3. Felsenfeld, A. J., & Levine, B. S. (2015). Calcitonin, the forgotten hormone: does it deserve to be forgotten?. Clinical kidney journal, 8(2), 180-187.
4. Machens, A., Hoffmann, F., Sekulla, C., & Dralle, H. (2009). Importance of gender-specific calcitonin thresholds in screening for occult sporadic medullary thyroid cancer. Endocrine-related cancer, 16(4), 1291-1298.
5. Wells Jr, S. A., Asa, S. L., Dralle, H., Elisei, R., Evans, D. B., Gagel, R. F., … & Waguespack, S. G. (2015). Revised American Thyroid Association guidelines for the management of medullary thyroid carcinoma: the American Thyroid Association Guidelines Task Force on medullary thyroid carcinoma. Thyroid, 25(6), 567-610.

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