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Vitamin D untuk Alopecia Areata

A

Berdasarkan 62 studi (8 meta-analyses, 1 RCT) dengan 9,085,485 peserta secara total. Mayoritas studi tidak menunjukkan efek yang signifikan.

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Kesimpulan

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) vs: Placebo Efek: OR=3.20 (95% CI: 1.24-8.24) for intralesional vitamin D3; MD=2.11 (topical); MD=-4.73 vs intralesion None
Meta-Analysis n=4931
Association Between Serum Trace Elements Level and Alopecia Areata: A Systematic Review and Meta-Analysis.
Dose: None vs: Placebo Efek: SMD=-0.93 (vitamin D); SMD=-0.69 (zinc); OR=2.48 (vitamin D deficiency risk) p<0.05
Case-Control n=144 Open-label
Tru9I Variant as a Novel Genetic Marker for Vitamin D Deficiency in Alopecia Areata.
Dose: None vs: 72 AA patients vs 72 age/sex-matched healthy controls Outcome: Vitamin D levels and VDR gene expression by … Efek: None None

Populasi: 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 vs: Healthy controls Outcome: CVR and systemic inflammation in alopecia areata Efek: None None

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

Key Statistics

98

Studi

9086791

Peserta

Mixed

A

Peringkat

Referenced Papers

Autoimmunity reviews 2023 24 sitasi
Photodiagnosis and photodynamic … 2023 5 sitasi
Archives of dermatological … 2023 3 sitasi
Journal of dermatological … 2021 51 sitasi
Journal of cosmetic … 2021 44 sitasi
Journal of the … 2020 57 sitasi
Actas dermo-sifiliograficas 2019 43 sitasi
Journal of Nepal … 2019 8 sitasi
American journal of … 2018 138 sitasi
Clinical and experimental … 2018 50 sitasi
American journal of … 2017 104 sitasi
International journal of … 2017 61 sitasi
Indian journal of … 2017 46 sitasi
Postepy dermatologii i … 2017 31 sitasi
Journal of the … 2017 7 sitasi
Postepy dermatologii i … 2016 59 sitasi
Indian dermatology online … 2016 51 sitasi
Clinics in dermatology 2016 19 sitasi
The journal of … 2015 25 sitasi
The Israel Medical … 2014 79 sitasi
The British journal … 2014 74 sitasi
Expert opinion on … 2014 57 sitasi
Journal of cutaneous … 2014 35 sitasi
The Journal of … 2013 10 sitasi

Dosage & Usage

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

Dosis yang Umum Digunakan

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

Batas atas: 4,000 IU/day

Dosis yang Diteliti dalam Penelitian

Dosis Durasi Efek 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

Waktu terbaik diminum: With a fat-containing meal for optimal absorption

Safety & Side Effects

Efek Samping yang Dilaporkan

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

Interaksi yang Diketahui

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

Asupan atas yang dapat ditoleransi: 4,000 IU/day

Selalu konsultasikan dengan tenaga kesehatan Anda sebelum memulai suplemen apa pun.Selalu konsultasikan dengan penyedia layanan kesehatan Anda sebelum memulai suplemen apa pun.

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

Penafian FDA: Pernyataan-pernyataan ini belum dievaluasi oleh Food and Drug Administration. Produk dan informasi di situs web ini tidak dimaksudkan untuk mendiagnosis, mengobati, menyembuhkan, atau mencegah penyakit apa pun. Peringkat bukti yang disajikan didasarkan pada analisis kami terhadap penelitian yang ditinjau sejawat dan tidak merupakan saran medis. Selalu konsultasikan dengan penyedia layanan kesehatan Anda sebelum memulai regimen suplemen apa pun.