Vitamina D para Telogen Effluvium

Q: Does Vitamina D help with Telogen Effluvium?

Based on 34 studies with 17,842 participants, there is insufficient evidence at this time that Vitamina D may support Telogen Effluvium management. Our evidence grade is F (Evidence Against).

Q: How much Vitamina D should I take for Telogen Effluvium?

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 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.

Q: How strong is the evidence for Vitamina D and Telogen Effluvium?

We rate the evidence as Grade F (Evidence Against). This rating is based on 34 peer-reviewed studies with 17,842 total participants. The overall direction of effect is mixed.

Baseado em 32 estudos (1 meta-analysis, 1 RCT) com 17,842 participantes no total. Os resultados são variados entre os estudos.

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Conclusão

Despite frequent associations between low vitamin D and telogen effluvium, research does not clearly support vitamin D supplementation as an effective approach for this type of hair shedding.

Lower vitamin D levels are common in telogen effluvium patients but may not be the cause
No well-designed RCTs demonstrate that supplementation resolves telogen effluvium
Post-COVID hair loss studies show inconsistent findings regarding vitamin D
Correcting a deficiency is reasonable, but vitamin D alone is unlikely to resolve hair shedding

Key Study Findings

retrospective observational n=113

Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases.

Dose: None vs: Placebo Efeito: None None

narrative review

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

Dose: None vs: Placebo Efeito: None None

Review

Safety First: A Comprehensive Review of Nutritional Supplements for Hair Loss in Breast Cancer Patients.

Dose: None vs: Placebo Efeito: None None

Meta-analysis

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

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

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 Efeito: None 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 Efeito: 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

Key Statistics

Estudos

17842

Participantes

↔

Mixed

Nota

Referenced Papers

Safety First: A Comprehensive Review of Nutritional Supplements for Hair Loss in Breast Cancer Patients. Review

Nutrients 2025 2 citações

Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases. Other

International journal of … 2025

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

Journal of drugs … 2025

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 citações

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

Journal of cosmetic … 2024 7 citações

Post Covid telogen effluvium: the diagnostic value of serum ferritin biomarker and the preventive value of dietary supplements. a case … Other

Archives of dermatological … 2024 5 citações

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

Frontiers in nutrition 2024 4 citações

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

Dermatology practical & … 2024

Etiology, management, and outcomes of pediatric telogen effluvium: A single-center study in the United States. Other

Pediatric dermatology 2023 9 citações

Micronutrient Deficiencies and Digital Computerized Phototrichogram Analysis in Telogen Effluvium: a Retrospective Correlation Study in a Tertiary Medical Center. Other

Dermatology practical & … 2023 4 citações

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

Archives of dermatological … 2023 3 citações

Oral Vitamin D Treatment in Patients with Telogen Effluvium: Clinical and Dermoscopic Evaluation. Other

International journal of … 2023 1 citações

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

Journal of cosmetic … 2022 22 citações

The role of micronutrients in the management of COIVD-19 and optimizing vaccine efficacy. Review

Human nutrition & … 2022 9 citações

Nonscarring scalp alopecia: Which laboratory analysis should we perform on whom? Other

Turkish journal of … 2022 8 citações

Reply to "Vitamin D status in scarring and nonscarring alopecia". Other

Journal of the … 2022 6 citações

Evaluation of MCV/RDW Ratio and Correlations With Ferritin in Telogen Effluvium Patients. Other

Dermatology practical & … 2022 6 citações

Supplementation and hair growth: A retrospective chart review of patients with alopecia and laboratory abnormalities. Other

JAAD international 2022 6 citações

Telogen Effluvium - a review of the science and current obstacles. Review

Journal of dermatological … 2021 51 citações

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

Journal of cosmetic … 2021 44 citações

Characteristics of telogen effluvium in COVID-19 in western Iran (2020). Other

Anais brasileiros de … 2021 26 citações

Prevalence of Low Serum Vitamin D Levels in Patients Presenting With Androgenetic Alopecia: A Review. Review

Cureus 2021 20 citações

Efficacy of Oral Vitamin D3 Therapy in Patients Suffering from Diffuse Hair Loss (Telogen Effluvium). Other

Journal of nutritional … 2021 12 citações

Telogen effluvium caused by COVID-19 in Elmhurst, New York: report of a cohort and review. Review

Dermatology online journal 2021 3 citações

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

International journal of … 2020 18 citações

Topical L-thyroxine: The Cinderella among hormones waiting to dance on the floor of dermatological therapy? Review

Experimental dermatology 2020 10 citações

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

Journal of cosmetic … 2019 25 citações

Vitamin D Receptor Gene Polymorphism In Chronic Telogen Effluvium; A Case-Control Study. Other

Clinical, cosmetic and … 2019 7 citações

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

International journal of … 2017 61 citações

Vitamin and Mineral Deficiencies in Patients With Telogen Effluvium: A Retrospective Cross-Sectional Study. Other

Journal of drugs … 2016 56 citações

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

International journal of … 2016 28 citações

Use of Vitamins and Minerals in the Treatment of Hair Loss: A Cross-Sectional Survey among Dermatologists in Saudi Arabia. Other

Journal of cutaneous … 2014 10 citações

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

Skin pharmacology and … 2013 127 citações

'Atrophic telogen effluvium' from cytotoxic drugs and a randomized controlled trial to investigate the possible protective effect of pretreatment with … RCT

The British journal … 2005 40 citações

Dosage & Usage

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

Dosagens Comumente Utilizadas

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

Limite superior: 4,000 IU/day

Dosagens Estudadas em Pesquisas

Dosagem	Duração	Efeito	N
None	--	Neutral	113
None	--	Positive	--
None	--	Mixed	--
None	--	Negative	--
not applicable	--	Mixed	180
not applicable (observational meta-analysis)	--	Negative	10670
None	--	Mixed	100
None	--	Neutral	120

Melhor horário: With a fat-containing meal for optimal absorption

Safety & Side Effects

Efeitos Colaterais Relatados

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

Interações Conhecidas

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

Ingestão máxima tolerável: 4,000 IU/day

Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.

Frequently Asked Questions

Does Vitamina D help with Telogen Effluvium?

Based on 34 studies with 17,842 participants, there is insufficient evidence at this time that Vitamina D may support Telogen Effluvium management. Our evidence grade is F (Evidence Against).

How much Vitamina D should I take for Telogen Effluvium?

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 Telogen Effluvium?

We rate the evidence as Grade F (Evidence Against). This rating is based on 34 peer-reviewed studies with 17,842 total participants. The overall direction of effect is mixed.

Related Evidence

Outros ingredientes para Telogen Effluvium

Minoxidil A Óleo de semente preta A Viviscal A Ferro B Ácidos graxos ômega-3 B Keratin B

Vitamina D para outras condições

Alopecia Areata A Perda Capilar de Padrão Feminino A

Veredito Rápido

Baseado em 32 estudos (1 meta-analysis, 1 RCT) com 17,842 participantes no total. Os resultados são variados entre os estudos.

Evidence Strength10%

Low confidence

Detalhamento dos Estudos

RCT (1)Meta (1)Other (32)

Comparar Alternativas

Veja como outros ingredientes se comparam para esta condição.

Ver todos os ingredientes para Telogen Effluvium

Saiba Mais

Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.