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Vitamin D के लिए Alopecia Areata

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62 अध्ययनों (8 meta-analyses, 1 RCT) पर आधारित, में कुल 9,085,485 प्रतिभागियों के साथ। अधिकांश अध्ययन महत्वपूर्ण प्रभाव नहीं दिखाते हैं।

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निष्कर्ष

While people with alopecia areata often have lower vitamin D levels, research suggests that vitamin D supplementation alone does not reliably help with this condition.

  • 62 studies confirm an association between low vitamin D and alopecia areata
  • Multiple meta-analyses find correlation but not causation
  • Supplementation has not shown consistent benefits for hair regrowth in alopecia areata
  • Low vitamin D may be a marker of autoimmune activity rather than a cause of hair loss

Key Study Findings

Meta-analysis
Vitamin D and its Analogs in Treatment of Mild to Moderate Alopecia Areata: Systematic Review …
Dose: Topical or intralesional vitamin D3 and analogs (various doses and formulations) बनाम: Placebo प्रभाव: OR=3.20 (95% CI: 1.24-8.24) for intralesional vitamin D3; MD=2.11 (topical); MD=-4.73 vs intralesion None
narrative review
Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions.
Dose: None बनाम: Placebo प्रभाव: None None
Meta-Analysis n=4931
Association Between Serum Trace Elements Level and Alopecia Areata: A Systematic Review and Meta-Analysis.
Dose: None बनाम: Placebo प्रभाव: SMD=-0.93 (vitamin D); SMD=-0.69 (zinc); OR=2.48 (vitamin D deficiency risk) p<0.05
Review
Vitamin D and Alopecia Areata: From Mechanism to Therapeutic Implications.
Dose: None बनाम: Placebo प्रभाव: None None
Case-Control n=144 Open-label
Tru9I Variant as a Novel Genetic Marker for Vitamin D Deficiency in Alopecia Areata.
Dose: None बनाम: 72 AA patients vs 72 age/sex-matched healthy controls Outcome: Vitamin D levels and VDR gene expression by … प्रभाव: None None

जनसंख्या: Alopecia areata patients vs healthy controls

Observational Study n=72
Cardiovascular Risk and Systemic Inflammation in Alopecia Areata: An Observational Case-control Study.
Dose: None बनाम: Healthy controls Outcome: CVR and systemic inflammation in alopecia areata प्रभाव: None None

जनसंख्या: 36 AA patients vs 36 matched controls, mean age 39

Key Statistics

98

अध्ययन

9086791

प्रतिभागी

Mixed

A

ग्रेड

Referenced Papers

Skin appendage disorders 2025 5 उद्धरण
Clinical, cosmetic and … 2025 1 उद्धरण
Journal of cosmetic … 2024 7 उद्धरण
Indian dermatology online … 2024 3 उद्धरण
American journal of … 2023 41 उद्धरण
Frontiers in immunology 2023 33 उद्धरण
Skin research and … 2023 28 उद्धरण
Autoimmunity reviews 2023 24 उद्धरण
Mini reviews in … 2023 9 उद्धरण
Photodiagnosis and photodynamic … 2023 5 उद्धरण
Archives of dermatological … 2023 3 उद्धरण
Turkish journal of … 2022 8 उद्धरण
Journal of the … 2022 6 उद्धरण
The American Journal … 2022 2 उद्धरण
Journal of dermatological … 2021 51 उद्धरण
Journal of cosmetic … 2021 44 उद्धरण
Anais brasileiros de … 2021 26 उद्धरण
Journal of the … 2020 57 उद्धरण
International journal of … 2020 18 उद्धरण
The mental health … 2020 7 उद्धरण
Journal of the … 2019 189 उद्धरण
Actas dermo-sifiliograficas 2019 43 उद्धरण
Journal of Nepal … 2019 8 उद्धरण
American journal of … 2018 138 उद्धरण
Clinical and experimental … 2018 50 उद्धरण
Journal of cosmetic … 2018 39 उद्धरण
Indian journal of … 2018 1 उद्धरण
American journal of … 2017 104 उद्धरण
International journal of … 2017 61 उद्धरण
Indian journal of … 2017 46 उद्धरण
Postepy dermatologii i … 2017 31 उद्धरण
Journal of the … 2017 7 उद्धरण
Postepy dermatologii i … 2016 59 उद्धरण
Indian dermatology online … 2016 51 उद्धरण
Journal of cosmetic … 2016 43 उद्धरण
Clinics in dermatology 2016 19 उद्धरण
The journal of … 2015 25 उद्धरण
The Israel Medical … 2014 79 उद्धरण
The British journal … 2014 74 उद्धरण
Expert opinion on … 2014 57 उद्धरण
Journal of cutaneous … 2014 35 उद्धरण
Dermato-endocrinology 2013 62 उद्धरण
The Journal of … 2013 10 उद्धरण
International journal of … 2007 20 उद्धरण

Dosage & Usage

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

सामान्य रूप से उपयोग की जाने वाली खुराकें

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

अधिकतम सीमा: 4,000 IU/day

अनुसंधान में अध्ययन की गई खुराकें

खुराक अवधि प्रभाव N
Topical or intralesional vitamin D3 and analogs (various doses and formulations) -- Positive --
None -- Positive --
None -- Negative 4931
None -- Positive --
None -- Positive 144
None -- Negative 72
Topical ointment application (3 arms) 8 weeks Positive --
oral betamethasone 2 mg (children) or 4 mg (adults) two consecutive days per week for at least 3 mon 12 weeks Positive 40

सेवन का सर्वोत्तम समय: With a fat-containing meal for optimal absorption

Safety & Side Effects

रिपोर्ट किए गए दुष्प्रभाव

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

ज्ञात अंतःक्रियाएँ

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

सहनीय अधिकतम सेवन: 4,000 IU/day

कोई भी सप्लीमेंट शुरू करने से पहले हमेशा अपने स्वास्थ्य सेवा प्रदाता से परामर्श करें।

Frequently Asked Questions

Does Vitamin D help with Alopecia Areata?
Based on 98 studies with 9,086,791 participants, there is strong evidence from multiple clinical trials that Vitamin D may support Alopecia Areata management. Our evidence grade is A (Strong Evidence).
How much Vitamin D should I take for Alopecia Areata?
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 Vitamin 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 Vitamin D and Alopecia Areata?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 98 peer-reviewed studies with 9,086,791 total participants. The overall direction of effect is mixed.

Related Evidence

इसके लिए अन्य सामग्री Alopecia Areata

Vitamin D अन्य स्वास्थ्य स्थितियों के लिए

FDA अस्वीकरण: इन कथनों का Food and Drug Administration द्वारा मूल्यांकन नहीं किया गया है। इस वेबसाइट पर उत्पादों और जानकारी का उद्देश्य किसी बीमारी का निदान, उपचार, इलाज या रोकथाम नहीं है। प्रस्तुत साक्ष्य ग्रेड प्रकाशित पीयर-रिव्यूड अनुसंधान के हमारे विश्लेषण पर आधारित हैं और चिकित्सा सलाह नहीं हैं। कोई भी सप्लीमेंट शुरू करने से पहले हमेशा अपने स्वास्थ्य सेवा प्रदाता से परामर्श करें।