Cited by 59Thyroid Disorders and TreatmentsDigestive system and related healthThyroid and Parathyroid Surgery

Decrease in TSH levels after lactose restriction in Hashimoto's thyroiditis patients with lactose intolerance

Asik, Mehmet, Gunes, Fahri, Binnetoglu, Emine, Eroglu, Mustafa, Bozkurt, Neslihan, Sen, Hacer, Akbal, Erdem, Bakar, Coskun +2 more·2014·Endocrine

Abstract

We aimed to evaluate the prevalence of lactose intolerance (LI) in patients with Hashimoto's thyroiditis(HT) and the effects of lactose restriction on thyroid function in these patients. Eighty-three HT patients taking L-thyroxine (LT4) were enrolled, and lactose tolerance tests were performed on all patients. Lactose intolerance was diagnosed in 75.9 % of the patients with HT. Thirty-eight patients with LI were started on a lactose-restricted diet for 8 weeks. Thirty-eight patients with LI (30 euthyroid and 8 with subclinical hypothyroidism), and 12 patients without LI were included in the final analysis. The level of TSH significantly decreased in the euthyroid and subclinical hypothyroid patients with LI [from 2.06 ± 1.02 to 1.51 ±1.1 IU/mL and from 5.45 ± 0.74 to 2.25 ± 1.88 IU/mL,respectively (both P<0.05)]. However, the level of TSH in patients without LI did not change significantly over the 8 weeks (P>0.05). Lactose intolerance occurs at a high frequency in HT patients. Lactose restriction leads to decreased levels of TSH, and LI should be considered in hypothyroid patients who require increasing LT4 doses,have irregular TSH levels and are resistant to LT4 treatment.

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Crossref · 10.1007/s12020-013-0065-1

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  • In hypothyroid patients with lactose intolerance, a lactose-free diet lowers TSH.

    “Seventy-six percent of hypothyroid patients show lactose intolerance, a lowered TSH was observed when such patients are provided a lactose-free diet (Asik et al., 2014).”

    From Thyroid disorders and gastrointestinal dysmotility: an old association (2024) · cites this paper as Asik et al., 2014

  • Treatment for food sensitivities/intolerances improves malabsorption of thyroid medication.

    “Malabsorption of thyroid medication has also been improved with treatment for food sensitivities/intolerances (Asik et al., 2014).”

    From Thyroid disorders and gastrointestinal dysmotility: an old association (2024) · cites this paper as Asik et al., 2014

  • Seventy-six percent of hypothyroid patients show lactose intolerance.

    “Seventy-six percent of hypothyroid patients show lactose intolerance, a lowered TSH was observed when such patients are provided a lactose-free diet (Asik et al., 2014).”

    From Thyroid disorders and gastrointestinal dysmotility: an old association (2024) · cites this paper as Asik et al., 2014

  • In patients with celiac disease, intestinal parasitosis, or other intestinal dysfunctions, TSH concentrations remained elevated even after treatment with increased doses.

    “In patients with celiac disease, intestinal parasitosis, or other intestinal dysfunctions, TSH concentrations remained elevated, even after treatment with increased doses (19, 23–26).”
  • Lactose intolerance and celiac disease are among the most frequent intestinal diseases responsible for malabsorption and may both impair intestinal absorption of drugs and nutrients via hydrolysis and complexation.

    “In addition to surgery, lactose intolerance and celiac disease are among the most frequent intestinal diseases responsible for malabsorption. They may both impair intestinal absorption of drugs and nutrients via hydrolysis and complexation (25, 26, 55).”

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Authors
Asik, M., Gunes, F., Binnetoglu, E., Eroglu, M., Bozkurt, N., Sen, H., Akbal, E., Bakar, C., Beyazit, Y., & Ukinc, K.
Affiliations
Çanakkale Onsekiz Mart Üniversitesi (TR)
Venue
Endocrine
Published
2013-09-28
Volume
46
Issue
2
Pages
279-284
ISSN
  • 0969-711X (ISSN-L)
  • 1355-008X
  • 1559-0100
OpenAlex
W2082937613
Cited by
58
References
25
Citations by year
2026: 2 · 2025: 4 · 2024: 10 · 2023: 4 · 2022: 8 · 2021: 8 · 2020: 4 · 2019: 3 · 2018: 3 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 2
FWCI
2.36
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrine (publishedVersion)
  • PubMed (publishedVersion)
  • Çanakkale Onsekiz Mart University AVESIS (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Digestive system and related health
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
Hashimoto's thyroiditis, lactose intolerance, thyroid-stimulating hormone, thyroid function, subclinical hypothyroidism, levothyroxine, dietary intervention
MeSH terms
Adult, Diet, Female, Humans, Lactose Intolerance, Lactose Tolerance Test, Male, Middle Aged, Thyrotropin, Treatment Outcome, Hashimoto Disease

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