Research

Hormonal

Untreated thyroid dysfunction (both hyper- and hypothyroidism) impairs metabolic control in diabetic patients, exacerbating glycemic instability and increasing the risk of microvascular complications.

If you have diabetes, your thyroid health directly impacts your blood sugar control. Untreated thyroid issues (even subclinical ones) can make your diabetes harder to manage. You should be screened for thyroid dysfunction (TSH, TPO antibodies) regularly, and if found, treating the thyroid issue is essential to achieving stable glucose levels.

GoodSupportsHIGH confidence
An untreated thyroid dysfunction can impair the metabolic control of diabetic patients, and this association can have important repercussions on the outcome of both of these disorders.
Bernadette Biondi et al. · Endocrine Reviews · 2019

Why this rating

Based on a comprehensive review of multiple longitudinal studies, meta-analyses, and population-based cohorts (NHANES, HUNT, Rotterdam) cited in the text.

Source

Thyroid Dysfunction and Diabetes Mellitus: Two Closely Associated Disorders

Bernadette Biondi et al. · Endocrine Reviews · 2019

DOI 10.1210/er.2018-00163

narrative_reviewCited 569×
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DOI resolved against Crossref · corpus check 2026-06-10

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