Conditions
November 4, 2025

Understanding the Discrepancy Between Normal Blood Tests and Persistent Symptoms in Hashimoto's Thyroiditis

WRITTEN BY
Dr Dimitris Tsoukalas, MD, PhD
Chief Medical Advisor

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Understanding the Discrepancy Between Normal Blood Tests and Persistent Symptoms in Hashimoto's Thyroiditis

Despite thyroid function lab tests indicating normal results, many individuals with Hashimoto's thyroiditis continue to experience debilitating symptoms.

The cause of these ongoing symptoms often lies in hard-to-detect micronutrient deficiencies and metabolic dysfunctions.

The Hidden Culprits: Micronutrient Deficiencies and Metabolic Dysfunctions

Patients with Hashimoto's disease frequently suffer from energy depletion, unexplained weight gain, mood swings, intestinal issues, cognitive impairments, and muscle or joint pain [1-3].

These symptoms stem from deficiencies in essential vitamins, minerals, antioxidants and metabolic issues like insulin resistance and microbiome dysbiosis [4-8].

Unfortunately, these underlying problems often evade detection through standard thyroid function tests.

Why Standard Testing Falls Short

Standard thyroid tests, while crucial, only provide a partial picture of thyroid health. They often miss subtle metabolic imbalances and mild micronutrient deficiencies that significantly impact patients' quality of life [8,9].

This gap in diagnostic capability leads to a situation where symptoms persist despite thyroid hormone levels appearing normal.

The Need for More Comprehensive Lab Testing

A more in-depth approach is needed to address underlying root causes and detect these elusive deficiencies and dysfunctions. Unlike conventional tests, Kyma’s panel delves deep into the body's metabolic processes, uncovering issues like insulin resistance, inflammation, and deficiencies in critical nutrients, among others [8–13].

By addressing these hidden factors, members experience marked improvements in energy, weight management, inflammation, mood, mental clarity, and overall quality of life.

Beyond Hormone Regulation

Hashimoto's thyroiditis, a common autoimmune condition, requires a care approach that goes beyond mere hormone regulation.

Identifying and correcting the accompanying micronutrient deficiencies and metabolic disorders is essential. Without addressing these factors, patients may face a gradual deterioration in their health.

The Power of a Comprehensive, Root-Cause Approach

Implementing a root-cause approach in Hashimoto’s disease has shown promising results. It not only protects the thyroid from further damage but also enhances residual gland function, helps normalise metabolism, and reduces the risk of additional autoimmune conditions.

This comprehensive approach typically requires sustained effort over months but leads to significant and lasting improvements in peoples’ lives.

Over the last 20 years, our scientific team has helped more than 30,000 patients. More than 85% of our patients with Hashimoto’s disease improve with the protocols we use at Kyma Health.

It usually takes 6–8 months to achieve significant change, one year to stabilise the body at a better functional level, and about two years for optimal results.

For those struggling with Hashimoto’s thyroiditis, it is crucial to look beyond standard thyroid tests.

Kyma’s advanced lab testing and root-cause approach offer a more comprehensive understanding of the condition, leading to targeted care that addresses micronutrient deficiencies and metabolic dysfunctions that exacerbate persistent symptoms.

By identifying and correcting deficiencies and metabolic disruptions, patients can significantly improve their quality of life and shift the course of their disease toward steady improvement.

Bibliographic References

[1] Is a Normal TSH Synonymous With “Euthyroidism”?Sarah J. Peterson, Elizabeth A. McAninch, Antonio C. Bianco. The Journal of Clinical Endocrinology & Metabolism 2016.

[2] Persisting symptoms in patients with Hashimoto’s disease despite normal thyroid hormone levels: Does thyroid autoimmunity play a role? A systematic review.  Karelina L. Groenewegen et al. J Transl Autoimmun. 2021.

[3] Cognitive and Affective Dysfunctions in Autoimmune Thyroiditis Thomas Leyhe, Karsten Müssig. Brain Behav Immun . 2014

[4] Multiple Nutritional Factors and the Risk of Hashimoto's Thyroiditis Shiqian Hu, Margaret P Rayman. Thyroid . 2017 May. https://pubmed.ncbi.nlm.nih.gov/28290237/

[5] Correlation Between Hashimoto's Thyroiditis-Related Thyroid Hormone Levels and 25-Hydroxyvitamin D Guanqun Chao, Yue Zhu, Lizheng Fang. Front Endocrinol (Lausanne). 2020 Feb.  https://pubmed.ncbi.nlm.nih.gov/32117049/

[6] Changes in Glucose-Lipid Metabolism, Insulin Resistance, and Inflammatory Factors in Patients With Autoimmune Thyroid Disease Yi Lei et. al. J Clin Lab Anal . 2019 https://pubmed.ncbi.nlm.nih.gov/31350776/

[7] Metabolic Characteristics of Hashimoto's Thyroiditis Patients and the Role of Microelements and Diet in the Disease Management-An Overview. Aniceta A Mikulska et al. Int J Mol Sci . 2022 https://pubmed.ncbi.nlm.nih.gov/35743024/

[8] Targeted Metabolomic Analysis of Serum Fatty Acids for the Prediction of Autoimmune Diseases. Dimitris Tsoukalas, Vassileios Fragoulakis, Evangelia Sarandi et. al. Frontiers in Molecular Biosciences, Metabolomics (6), 2019, Published 1 November 2019.

[9] Micronutrient deficiencies in patients with COVID-19: how metabolomics can contribute to their prevention and replenishment. Dimitris Tsoukalas and Evangelia Sarandi. BMJ Nutri Prev Heal. Nov. 2020; bmjnph-2020-000169

[10] Prediction of Autoimmune Diseases by Targeted Metabolomic Assay of Urinary Organic Acids. Dimitris Tsoukalas et. al. Metabolites. 2020 Dec 8.

[11] Metabolic profiling of organic and fatty acids in chronic and autoimmune diseases. Evangelia Sarandi, Dimitris Tsoukalas et al. Advances in Clinical Chemistry. July 15, 2020. Elsevier Inc.

[12] A Clinical Trial for the Identification of Metabolic Biomarkers in Hashimoto’s Thyroiditis and in Psoriasis: Study Protocol by Evangelia Sarandi et al Pathophysiology 2021 https://www.mdpi.com/1873-149X/28/2/19

[13] Non-communicable Diseases in the Era of Precision Medicine: An Overview of the Causing Factors and Prospects. Dimitris Tsoukalas et al. Bio#Futures. Springer, Cham. May 2021.