Skip to main content
HairCited

Vitamina D per Alopecia femminile

A

Basato su 18 studi (2 meta-analyses) con 15,494 partecipanti totali. I risultati sono contrastanti tra gli studi.

<\/script>\n
`; }, get iframeSnippet() { const domain = 'haircited.com'; const params = 'ingredient\u003Dvitamin\u002Dd\u0026condition\u003Dfemale\u002Dpattern\u002Dhair\u002Dloss'; return ``; }, get activeSnippet() { return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet; }, copySnippet() { navigator.clipboard.writeText(this.activeSnippet).then(() => { this.copied = true; setTimeout(() => { this.copied = false; }, 2000); }); } }" @keydown.escape.window="open = false" @click.outside="open = false">

Embed This Widget

Style



      
      
    

Widget powered by . Free, no account required.

A

In sintesi

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 Effetto: None None
Meta-analysis
Vitamin D deficiency in non-scarring and scarring alopecias: a systematic review and meta-analysis.
Dose: None vs: Placebo Effetto: 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 Effetto: 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 Effetto: 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 Effetto: 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 Effetto: None None

Popolazione: Women with non-scarring alopecia

Key Statistics

19

Studi

15494

Partecipanti

Mixed

A

Grado

Referenced Papers

Archives of dermatological … 2023 3 citazioni
Journal of cosmetic … 2021 44 citazioni
International journal of … 2020 18 citazioni
Experimental dermatology 2017 82 citazioni
International journal of … 2017 61 citazioni
International journal of … 2016 42 citazioni
Skin pharmacology and … 2013 127 citazioni

Dosage & Usage

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

Dosaggi di uso comune

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

Limite massimo: 4,000 IU/day

Dosaggi studiati nella ricerca

Dosaggio Durata Effetto 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

Momento migliore per l'assunzione: With a fat-containing meal for optimal absorption

Safety & Side Effects

Effetti collaterali segnalati

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

Interazioni note

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

Livello di assunzione massimo tollerabile: 4,000 IU/day

Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.

Frequently Asked Questions

Does Vitamina D help with Alopecia femminile?
Based on 19 studies with 15,494 participants, there is strong evidence from multiple clinical trials that Vitamina D may support Alopecia femminile management. Our evidence grade is A (Strong Evidence).
How much Vitamina D should I take for Alopecia femminile?
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 Vitamina 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 Vitamina D and Alopecia femminile?
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.

Related Evidence

Avvertenza FDA: Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.