Tuber intake is independently associated with reduced risk of Hashimoto’s thyroiditis: a community-based cross-sectional study - Report - MDSpire

Tuber intake is independently associated with reduced risk of Hashimoto’s thyroiditis: a community-based cross-sectional study

  • By

  • Xiaochen Ji

  • Guohua Hao

  • Bowei Su

  • Bing Wang

  • Zhengnan Gao

  • July 14, 2026

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Consumption of tubers is linked to a lower likelihood of developing Hashimoto’s thyroiditis

Overview

This study investigates the relationship between tuber consumption and Hashimoto's thyroiditis (HT) prevalence in a large community cohort. It also examines the association of high-dose folic acid supplementation with HT risk.

Background

Hashimoto's thyroiditis is the leading cause of autoimmune hypothyroidism, with increasing incidence linked to environmental and lifestyle factors. This study investigates dietary influences on HT risk in a community-based cohort.

Data Highlights

VariableOdds Ratio (OR)95% Confidence Interval (CI)P-value
Female sex1.971.68 to 2.33-
Total cholesterol1.131.02 to 1.26-
Fasting glucose0.950.91 to 1.00-
Tuber intake (50-100 g/day)0.750.64 to 0.880.001
Vegetable intake0.870.79 to 0.960.006
Excessive tuber intake (>100 g/day)1.50--

Key Findings

  • HT prevalence was 29.3% in the study cohort.
  • Female sex, elevated total cholesterol, and lower fasting glucose were identified as independent metabolic predictors of HT.
  • Adequate tuber intake (50–100 g/day) was associated with a reduced risk of HT (OR 0.75).
  • Excessive tuber intake (>100 g/day) was linked to an increased risk of HT (OR 1.50).
  • Mendelian randomization indicated that folic acid supplementation causally increased HT risk.

Clinical Implications

Healthcare professionals should consider dietary factors when assessing HT risk.

Conclusion

Further research is warranted to explore the associations between tuber intake, folic acid supplementation, and Hashimoto's thyroiditis.

Related Resources & Content

  1. The Journal of Clinical Endocrinology & Metabolism, 2023 -- Links Between Vegetable and Potato Consumption and Type 2 Diabetes Risk Indicators in the AusDiab Study
  2. The Association of Papillary Thyroid Carcinoma and Hashimoto's Thyroiditis, 2012
  3. Frontiers in Endocrinology, 2026 -- Metabolic dysregulation and biological age acceleration in Hashimoto’s thyroiditis: a cross-sectional study based on clinical biomarker aging indices and metabolomics
  4. The Journal of Clinical Endocrinology & Metabolism, 2023 -- The Link Between Dietary Fat Intake and Thyroid Autoimmunity
  5. Hypothyroidism - PubMed, 2023
  6. Thyroid disease assessment and management: summary of NICE guidance | The BMJ, 2025
  7. Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism | New England Journal of Medicine, 2016
  8. Hypothyroidism - PubMed
  9. Thyroid disease assessment and management: summary of NICE guidance | The BMJ
  10. Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism | New England Journal of Medicine

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