ビタミンD ：女性型脱毛症

Q: Does ビタミンD help with 女性型脱毛症?

Based on 19 studies with 15,494 participants, there is strong evidence from multiple clinical trials that ビタミンD may support 女性型脱毛症 management. Our evidence grade is A (Strong Evidence).

Q: How much ビタミンD should I take for 女性型脱毛症?

Studies have used various dosages. A commonly studied range is 600-800 IU/day. Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of ビタミンD?

Reported side effects may include Hypercalcemia at very high doses (nausea, vomiting, weakness), Kidney stones with excessive long-term use, Constipation, Metallic taste. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for ビタミンD and 女性型脱毛症?

We rate the evidence as Grade A (Strong Evidence). This rating is based on 19 peer-reviewed studies with 15,494 total participants. The overall direction of effect is mixed.

A エビデンス複数の大規模臨床試験が一貫して有意な効果を示しています。

合計15,494名の参加者を対象とした18件の研究（メタアナリシス2件を含む）に基づく。研究間で結果にばらつきが見られる。

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結論

Research shows that women with pattern hair loss often have lower vitamin D levels, but supplementing with vitamin D alone is unlikely to significantly improve this condition — it may be one supportive factor among many.

Lower vitamin D levels are consistently found in women with pattern hair loss
Supplementation alone is less effective than established options like minoxidil
Vitamin D receptor gene variants may influence susceptibility
Maintaining adequate vitamin D may support overall hair health but is not a standalone solution

Key Study Findings

narrative review

Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions.

Dose: None vs: Placebo 効果: None None

Meta-analysis

Vitamin D deficiency in non-scarring and scarring alopecias: a systematic review and meta-analysis.

Dose: None vs: Placebo 効果: OR=2.84 (AA vs controls), OR=5.24 (FPHL vs controls) p<0.01

cross-sectional observational n=120

Filling the Gaps: Vitamin D Status in Diffuse Hair Fall Among Pakistanis.

Dose: None vs: Placebo 効果: 79.17% of patients with diffuse hair fall were vitamin D3 deficient (mean 17.33 ± 5.43 ng/mL) None

meta_analysis n=10670

Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.

Dose: not applicable (observational meta-analysis) vs: Placebo 効果: WMD -7.29 ng/mL (95% CI -9.21, -5.38); OR for vitamin D deficiency 3.11 (95% CI 2.29, 4.22) not explicitly stated; CI does

Case-control n=165

The development of non-scarring alopecia in women who wear the hijab.

Dose: None vs: Placebo 効果: OR=4.1 (95% CI 1.2-14.1) for vitamin D deficiency and telogen effluvium p=0.02

Other

Serum ferritin and vitamin D levels in women with non-scarring alopecia.

Dose: None vs: None Outcome: None 効果: None None

対象集団: Women with non-scarring alopecia

Key Statistics

研究数

15494

参加者数

↔

Mixed

グレード

Referenced Papers

Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions. Review

Journal of drugs … 2025

Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis. Meta-Analysis

Journal of cosmetic … 2024 7 件の引用

Vitamin D deficiency in non-scarring and scarring alopecias: a systematic review and meta-analysis. Systematic Review

Frontiers in nutrition 2024 4 件の引用

Filling the Gaps: Vitamin D Status in Diffuse Hair Fall Among Pakistanis. Other

Dermatology practical & … 2024

The development of non-scarring alopecia in women who wear the hijab. Other

Archives of dermatological … 2023 3 件の引用

Treatment with oral vitamin D alone, topical minoxidil, or combination of both in patients with female pattern hair loss: A … Other

Journal of cosmetic … 2022 10 件の引用

Serum ferritin and vitamin D levels in women with non-scarring alopecia. Other

Journal of cosmetic … 2022 4 件の引用

Role of vitamin D in hair loss: A short review. Review

Journal of cosmetic … 2021 44 件の引用

Study of serum vitamin D levels in men with premature androgenetic alopecia. Other

International journal of … 2020 18 件の引用

Serum 25 hydroxyvitamin D levels in alopecia areata, female pattern hair loss, and male androgenetic alopecia in a Chinese population. Other

Journal of cosmetic … 2020 17 件の引用

Trichotillomania associated with a 25-hydroxy vitamin D deficiency: A case report. Case Report

The mental health … 2020 7 件の引用

Vitamin D Receptor Gene Polymorphisms Taq-1 and Cdx-1 in Female Pattern Hair Loss. Other

Indian journal of … 2020 5 件の引用

Female Pattern Hair Loss and Androgen Excess: A Report From the Multidisciplinary Androgen Excess and PCOS Committee. Meta-Analysis

The Journal of … 2019 101 件の引用

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

Journal of cosmetic … 2019 25 件の引用

Genetics and other factors in the aetiology of female pattern hair loss. Review

Experimental dermatology 2017 82 件の引用

The Role of Vitamin D in Non-Scarring Alopecia. Review

International journal of … 2017 61 件の引用

Serum Vitamin D3 Level in Patients with Female Pattern Hair Loss. Other

International journal of … 2016 42 件の引用

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

International journal of … 2016 28 件の引用

Serum ferritin and vitamin d in female hair loss: do they play a role? Other

Skin pharmacology and … 2013 127 件の引用

Dosage & Usage

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

一般的な使用量

general:: 600-800 IU/day
deficiency:: 1,000-5,000 IU/day

上限量： 4,000 IU/day

研究で検討された用量

用量	期間	効果	N
None	--	Positive	--
None	--	Negative	--
None	--	Neutral	120
not applicable (observational meta-analysis)	--	Negative	10670
None	--	Positive	165
None	--	Mixed	--
None	--	Negative	--
1000 IU vitamin D3 daily	16 weeks	Positive	2

推奨摂取タイミング： With a fat-containing meal for optimal absorption

Safety & Side Effects

報告されている副作用

⚠ Hypercalcemia at very high doses (nausea, vomiting, weakness)
⚠ Kidney stones with excessive long-term use
⚠ Constipation
⚠ Metallic taste

既知の相互作用

● Thiazide diuretics (may increase risk of hypercalcemia)
● Corticosteroids (reduce vitamin D absorption and metabolism)
● Orlistat and cholestyramine (reduce fat-soluble vitamin absorption)

耐容上限摂取量： 4,000 IU/day

サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

Frequently Asked Questions

Does ビタミンD help with 女性型脱毛症?

Based on 19 studies with 15,494 participants, there is strong evidence from multiple clinical trials that ビタミンD may support 女性型脱毛症 management. Our evidence grade is A (Strong Evidence).

How much ビタミンD should I take for 女性型脱毛症?

Studies have used various dosages. A commonly studied range is 600-800 IU/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of ビタミンD?

Reported side effects may include Hypercalcemia at very high doses (nausea, vomiting, weakness), Kidney stones with excessive long-term use, Constipation, Metallic taste. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for ビタミンD and 女性型脱毛症?

We rate the evidence as Grade A (Strong Evidence). This rating is based on 19 peer-reviewed studies with 15,494 total participants. The overall direction of effect is mixed.

に関する他の成分：女性型脱毛症

ミノキシジル A スピロノラクトン A 低出力レーザー治療 A ニュートラフォル A ノコギリヤシ B

ビタミンD 他の症状・状態について

円形脱毛症 A 休止期脱毛症 F

総合評価

合計15,494名の参加者を対象とした18件の研究（メタアナリシス2件を含む）に基づく。研究間で結果にばらつきが見られる。

Evidence Strength92%

High confidence

研究の内訳

RCT (0)Meta (2)Other (17)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る：女性型脱毛症

詳しく見る

References

[1] Adam Leavitt et al.. J Drugs Dermatol. 2025. Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions. doi:10.36849/JDD.8763 PubMed
[2] Yuling Chen et al.. J Cosmet Dermatol. 2024. Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis. doi:10.1111/jocd.16093 PubMed
[3] Tanat Yongpisarn et al.. Front Nutr. 2024. Vitamin D deficiency in non-scarring and scarring alopecias: a systematic review and meta-analysis. doi:10.3389/fnut.2024.1479337 PubMed
[4] Palwasha Jalil et al.. Dermatol Pract Concept. 2024. Filling the Gaps: Vitamin D Status in Diffuse Hair Fall Among Pakistanis. doi:10.5826/dpc.1404a232 PubMed
[5] Marissa S Ceresnie et al.. Arch Dermatol Res. 2023. The development of non-scarring alopecia in women who wear the hijab. doi:10.1007/s00403-023-02713-3 PubMed
[6] Ghada F R Hassan et al.. J Cosmet Dermatol. 2022. Treatment with oral vitamin D alone, topical minoxidil, or combination of both in patients with female pattern hair loss: A … doi:10.1111/jocd.14743 PubMed
[7] Marina de Queiroz et al.. J Cosmet Dermatol. 2022. Serum ferritin and vitamin D levels in women with non-scarring alopecia. doi:10.1111/jocd.14472 PubMed
[8] Kriteeka Saini et al.. J Cosmet Dermatol. 2021. Role of vitamin D in hair loss: A short review. doi:10.1111/jocd.14421 PubMed
[9] Sarita Sanke et al.. Int J Dermatol. 2020. Study of serum vitamin D levels in men with premature androgenetic alopecia. doi:10.1111/ijd.14982 PubMed
[10] Jun Zhao et al.. J Cosmet Dermatol. 2020. Serum 25 hydroxyvitamin D levels in alopecia areata, female pattern hair loss, and male androgenetic alopecia in a Chinese population. doi:10.1111/jocd.13396 PubMed
[11] Erika Titus-Lay et al.. Ment Health Clin. 2020. Trichotillomania associated with a 25-hydroxy vitamin D deficiency: A case report. doi:10.9740/mhc.2020.01.038 PubMed
[12] Iman Seleit et al.. Indian J Dermatol. 2020. Vitamin D Receptor Gene Polymorphisms Taq-1 and Cdx-1 in Female Pattern Hair Loss. doi:10.4103/ijd.IJD_482_18 PubMed
[13] Enrico Carmina et al.. J Clin Endocrinol Metab. 2019. Female Pattern Hair Loss and Androgen Excess: A Report From the Multidisciplinary Androgen Excess and PCOS Committee. doi:10.1210/jc.2018-02548 PubMed
[14] 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
[15] Silke Redler et al.. Exp Dermatol. 2017. Genetics and other factors in the aetiology of female pattern hair loss. doi:10.1111/exd.13373 PubMed
[16] Agnieszka Gerkowicz et al.. Int J Mol Sci. 2017. The Role of Vitamin D in Non-Scarring Alopecia. doi:10.3390/ijms18122653 PubMed
[17] Mahnaz Banihashemi et al.. Int J Trichology. 2016. Serum Vitamin D3 Level in Patients with Female Pattern Hair Loss. doi:10.4103/0974-7753.188965 PubMed
[18] 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
[19] H Rasheed et al.. Skin Pharmacol Physiol. 2013. Serum ferritin and vitamin d in female hair loss: do they play a role? doi:10.1159/000346698 PubMed

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

ビタミンD ： 女性型脱毛症