Vitamin D cho Telogen Effluvium

Q: Does Vitamin D help with Telogen Effluvium?

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

Q: How much Vitamin 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 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.

Q: How strong is the evidence for Vitamin 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.

Dựa trên 32 nghiên cứu (1 meta-analysis, 1 RCT) với 17,842 người tham gia. Kết quả nghiên cứu không đồng nhất.

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Kết luận

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 so với: Placebo Hiệu quả: None None

narrative review

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

Dose: None so với: Placebo Hiệu quả: None None

Review

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

Dose: None so với: Placebo Hiệu quả: None None

Meta-analysis

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

Dose: None so với: Placebo Hiệu quả: 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 so với: Placebo Hiệu quả: 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) so với: Placebo Hiệu quả: 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

Nghiên cứu

17842

Người tham gia

↔

Mixed

Xếp hạng

Referenced Papers

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

Nutrients 2025 2 trích dẫn

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 trích dẫn

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

Journal of cosmetic … 2024 7 trích dẫn

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 trích dẫn

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

Frontiers in nutrition 2024 4 trích dẫn

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 trích dẫn

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

Dermatology practical & … 2023 4 trích dẫn

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

Archives of dermatological … 2023 3 trích dẫn

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

International journal of … 2023 1 trích dẫn

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

Journal of cosmetic … 2022 22 trích dẫn

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

Human nutrition & … 2022 9 trích dẫn

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

Turkish journal of … 2022 8 trích dẫn

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

Journal of the … 2022 6 trích dẫn

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

Dermatology practical & … 2022 6 trích dẫn

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

JAAD international 2022 6 trích dẫn

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

Journal of dermatological … 2021 51 trích dẫn

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

Journal of cosmetic … 2021 44 trích dẫn

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

Anais brasileiros de … 2021 26 trích dẫn

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

Cureus 2021 20 trích dẫn

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

Journal of nutritional … 2021 12 trích dẫn

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

Dermatology online journal 2021 3 trích dẫn

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

International journal of … 2020 18 trích dẫn

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

Experimental dermatology 2020 10 trích dẫn

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

Journal of cosmetic … 2019 25 trích dẫn

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

Clinical, cosmetic and … 2019 7 trích dẫn

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

International journal of … 2017 61 trích dẫn

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

Journal of drugs … 2016 56 trích dẫn

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

International journal of … 2016 28 trích dẫn

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 trích dẫn

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

Skin pharmacology and … 2013 127 trích dẫn

'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 trích dẫn

Dosage & Usage

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

Liều lượng thường dùng

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

Giới hạn trên: 4,000 IU/day

Liều lượng đã nghiên cứu

Liều lượng	Thời gian	Hiệu quả	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

Thời điểm dùng tốt nhất: With a fat-containing meal for optimal absorption

Safety & Side Effects

Tác dụng phụ đã được báo cáo

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

Tương tác đã biết

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

Mức hấp thụ tối đa cho phép: 4,000 IU/day

Luôn tham khảo ý kiến bác sĩ trước khi bắt đầu sử dụng bất kỳ thực phẩm bổ sung nào.Luôn tham khảo ý kiến chuyên gia y tế trước khi sử dụng bất kỳ thực phẩm chức năng nào.

Frequently Asked Questions

Does Vitamin D help with Telogen Effluvium?

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

How much Vitamin 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 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 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

Các thành phần khác cho Telogen Effluvium

Minoxidil A Dầu Hạt Đen A Viviscal A Sắt B Axit Béo Omega-3 B Keratin B

Vitamin D cho các tình trạng khác

Alopecia Areata A Rụng Tóc Kiểu Nữ A

Đánh giá nhanh

Dựa trên 32 nghiên cứu (1 meta-analysis, 1 RCT) với 17,842 người tham gia. Kết quả nghiên cứu không đồng nhất.

Evidence Strength10%

Low confidence

Phân tích nghiên cứu

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

So sánh lựa chọn thay thế

Xem các thành phần khác so sánh như thế nào cho tình trạng này.

Xem tất cả thành phần cho Telogen Effluvium

Tìm hiểu thêm

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