Iron 用于甲状腺功能减退相关体重增加

Q: Does Iron help with 甲状腺功能减退相关体重增加?

Based on 22 studies with 2,000 participants, there is limited but promising evidence that Iron may support 甲状腺功能减退相关体重增加 management. Our evidence grade is C (Some Evidence).

Q: How much Iron should I take for 甲状腺功能减退相关体重增加?

Studies have used various dosages. A commonly studied range is 8-18 mg/day (RDA). Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of Iron?

Reported side effects may include Constipation, Nausea, Stomach pain, Black stools. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for Iron and 甲状腺功能减退相关体重增加?

We rate the evidence as Grade C (Some Evidence). This rating is based on 22 peer-reviewed studies with 2,000 total participants. The overall direction of effect is positive.

C 证据来自小型研究的证据有限，但存在一些积极信号。

Iron is required for thyroid peroxidase (TPO), and iron deficiency impairs T4-to-T3 conversion and thyroid hormone synthesis. Meta-analysis of 22 RCTs found correction of iron deficiency improves exercise tolerance and VO2max. Supplement only when deficiency is confirmed.

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结论

Key Study Findings

Retrospective cohort n=2851

Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience.

Dose: None vs: Placebo 效果: Ferritin low in 46.5% of patients; iron deficiency in 29.5% p<0.05

case-control study n=180

A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, …

Dose: not applicable vs: Placebo 效果: None None

Review

Impact of Vitamin D on Immunopathology of Hashimoto's Thyroiditis: From Theory to Practice.

Dose: Vitamin D vs: None Outcome: Thyroid autoimmunity modulation 效果: None None

研究人群: Hashimoto's thyroiditis patients

Case-control n=100

The Association of Serum Ferritin Levels With Non-scarring Alopecia in Women.

Dose: None vs: Placebo 效果: MD=-7.40 (20.47 vs 27.87 µg/dL) p=0.005

Review

Role of Dietary Supplements in Thyroid Diseases.

Dose: None vs: None Outcome: None 效果: None None

研究人群: Patients with thyroid diseases

Observational Study n=218

Retrospective evaluation of clinical profile and comorbidities in patients with alopecia areata.

Dose: None vs: AA patients without comorbidity Outcome: Clinical profile and comorbidities 效果: None p=0.008

研究人群: Patients with alopecia areata (mean age 27.8y)

Key Statistics

研究数量

2000

受试者

↑

Positive

等级

Referenced Papers

Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience. Other

Journal of cosmetic … 2025 4 次引用

A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, vitamin B12, vitamin D, thyroid … Other

Journal of cosmetic … 2024 7 次引用

Impact of Vitamin D on Immunopathology of Hashimoto's Thyroiditis: From Theory to Practice. Review

Nutrients 2023 24 次引用

Metabolic Characteristics of Hashimoto's Thyroiditis Patients and the Role of Microelements and Diet in the Disease Management-An Overview. Review

International journal of … 2022 102 次引用

Telogen effluvium in daily practice: Patient characteristics, laboratory parameters, and treatment modalities of 3028 patients with telogen effluvium. Other

Journal of cosmetic … 2022 22 次引用

Role of Dietary Supplements in Thyroid Diseases. Review

Endocrine, metabolic & … 2022 8 次引用

Retrospective evaluation of clinical profile and comorbidities in patients with alopecia areata. Other

Northern clinics of … 2022 7 次引用

The Association of Serum Ferritin Levels With Non-scarring Alopecia in Women. Other

Cureus 2022 3 次引用

The Potential Prebiotic Berberine Combined With Methimazole Improved the Therapeutic Effect of Graves' Disease Patients Through Regulating the Intestinal Microbiome. Other

Frontiers in immunology 2021 22 次引用

Dietary supplements in hypothyroidism. Other

Acta scientiarum polonorum. … 2021 7 次引用

NonScarring Diffuse Hair Loss in Women: a Clinico-Etiological Study from tertiary care center in North-West India. Observational

Journal of cosmetic … 2019 25 次引用

Methods of treatment patients with androgenetic alopecia based on reference of Department of Dermatology in Cracow. Other

Polski merkuriusz lekarski … 2019 4 次引用

Multiple Nutritional Factors and the Risk of Hashimoto's Thyroiditis. Review

Thyroid : official … 2017 170 次引用

A prospective case control questionnaire study for restless leg syndrome on 600 pregnant women. Other

The journal of … 2017 8 次引用

Female Pattern Hair Loss: A Retrospective Study in a Tertiary Referral Center. Other

International journal of … 2016 28 次引用

Clinicoepidemiological Observational Study of Acquired Alopecias in Females Correlating with Anemia and Thyroid Function. Other

Dermatology research and … 2016 26 次引用

Evaluation and treatment of male and female pattern hair loss. Other

Journal of the … 2005 247 次引用

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

常用剂量

general:: 8-18 mg/day (RDA)
menstruatingwomen:: 18 mg/day
deficiencycorrection:: 100-200 mg elemental iron/day under medical guidance

上限： 45 mg/day (elemental iron); excess iron increases oxidative stress

研究中使用的剂量

剂量	持续时间	效果	N
None	--	Neutral	2851
not applicable	--	Mixed	180
Vitamin D	--	Positive	--
None	--	Negative	100
None	--	Mixed	--
None	--	Mixed	218
None	--	Positive	--
standard replacement doses	--	Neutral	3028

最佳服用时间： On empty stomach with vitamin C for absorption; avoid with calcium, coffee, tea

Safety & Side Effects

已报告的副作用

⚠ Constipation
⚠ Nausea
⚠ Stomach pain
⚠ Black stools
⚠ Oxidative stress (excess iron)

已知相互作用

● Levothyroxine (reduced absorption — take 4 hours apart)
● Tetracycline antibiotics (reduced absorption)
● Calcium supplements (reduced absorption)
● Proton pump inhibitors (reduced absorption)

可耐受最高摄入量： 45 mg/day (elemental iron); excess iron increases oxidative stress

在开始服用任何补充剂之前，请务必咨询您的医疗保健提供者。

Frequently Asked Questions

Does Iron help with 甲状腺功能减退相关体重增加?

Based on 22 studies with 2,000 participants, there is limited but promising evidence that Iron may support 甲状腺功能减退相关体重增加 management. Our evidence grade is C (Some Evidence).

How much Iron should I take for 甲状腺功能减退相关体重增加?

Studies have used various dosages. A commonly studied range is 8-18 mg/day (RDA). Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Iron?

Reported side effects may include Constipation, Nausea, Stomach pain, Black stools. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Iron and 甲状腺功能减退相关体重增加?

We rate the evidence as Grade C (Some Evidence). This rating is based on 22 peer-reviewed studies with 2,000 total participants. The overall direction of effect is positive.

Iron 用于其他健康状况

减重手术后营养支持 B 减重期间的运动表现 C

快速结论

Evidence Strength52%

Moderate confidence

研究分析

RCT (0)Meta (0)Other (22)

对比替代方案

查看其他成分针对该健康状况的对比结果。

查看所有成分用于甲状腺功能减退相关体重增加

了解更多

References

[1] Ömer Karakoyun et al.. J Cosmet Dermatol. 2025. Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience. doi:10.1111/jocd.70037 PubMed
[2] Irem Nur Durusu Turkoglu et al.. J Cosmet Dermatol. 2024. A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, vitamin B12, vitamin D, thyroid … doi:10.1111/jocd.16512 PubMed
[3] Filip Lebiedziński et al.. Nutrients. 2023. Impact of Vitamin D on Immunopathology of Hashimoto's Thyroiditis: From Theory to Practice. doi:10.3390/nu15143174 PubMed
[4] Aniceta A Mikulska et al.. Int J Mol Sci. 2022. Metabolic Characteristics of Hashimoto's Thyroiditis Patients and the Role of Microelements and Diet in the Disease Management-An Overview. doi:10.3390/ijms23126580 PubMed
[5] Ahu Yorulmaz et al.. J Cosmet Dermatol. 2022. Telogen effluvium in daily practice: Patient characteristics, laboratory parameters, and treatment modalities of 3028 patients with telogen effluvium. doi:10.1111/jocd.14413 PubMed
[6] Vinesh Dahiya et al.. Endocr Metab Immune Disord Drug Targets. 2022. Role of Dietary Supplements in Thyroid Diseases. doi:10.2174/1871530322666220419125131 PubMed
[7] Sule Goksin. North Clin Istanb. 2022. Retrospective evaluation of clinical profile and comorbidities in patients with alopecia areata. doi:10.14744/nci.2022.78790 PubMed
[8] Muhammad Fawad Aslam et al.. Cureus. 2022. The Association of Serum Ferritin Levels With Non-scarring Alopecia in Women. doi:10.7759/cureus.32123 PubMed
[9] Zhe Han et al.. Front Immunol. 2021. The Potential Prebiotic Berberine Combined With Methimazole Improved the Therapeutic Effect of Graves' Disease Patients Through Regulating the Intestinal Microbiome. doi:10.3389/fimmu.2021.826067 PubMed
[10] Dagmara Woźniak et al.. Acta Sci Pol Technol Aliment. 2021. Dietary supplements in hypothyroidism. doi:10.17306/J.AFS.0985 PubMed
[11] Kavita Poonia et al.. J Cosmet Dermatol. 2019. NonScarring Diffuse Hair Loss in Women: a Clinico-Etiological Study from tertiary care center in North-West India. doi:10.1111/jocd.12559 PubMed
[12] Karolina Kozicka et al.. Pol Merkur Lekarski. 2019. Methods of treatment patients with androgenetic alopecia based on reference of Department of Dermatology in Cracow. PubMed
[13] Shiqian Hu et al.. Thyroid. 2017. Multiple Nutritional Factors and the Risk of Hashimoto's Thyroiditis. doi:10.1089/thy.2016.0635 PubMed
[14] İrfan Ozer et al.. J Matern Fetal Neonatal Med. 2017. A prospective case control questionnaire study for restless leg syndrome on 600 pregnant women. doi:10.3109/14767058.2016.1170801 PubMed
[15] Tee Wei Siah et al.. Int J Trichology. 2016. Female Pattern Hair Loss: A Retrospective Study in a Tertiary Referral Center. doi:10.4103/0974-7753.188033 PubMed
[16] Kirti Deo et al.. Dermatol Res Pract. 2016. Clinicoepidemiological Observational Study of Acquired Alopecias in Females Correlating with Anemia and Thyroid Function. doi:10.1155/2016/6279108 PubMed
[17] Elise A Olsen et al.. J Am Acad Dermatol. 2005. Evaluation and treatment of male and female pattern hair loss. doi:10.1016/j.jaad.2004.04.008 PubMed

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