비타민D 관련 원형 탈모증
A 근거 여러 대규모 임상 시험이 일관되게 유의미한 효과를 보여줍니다.총 9,085,485명의 참여자를 대상으로 한 62건의 연구(메타분석 8건, RCT 1건)에 근거합니다. 대다수의 연구에서 부정적이거나 유의미한 효과가 나타나지 않았습니다.
결론
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
대상 집단: Alopecia areata patients vs healthy controls
대상 집단: 36 AA patients vs 36 matched controls, mean age 39
Key Statistics
98
연구
9086791
참여자
Mixed
등급
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
일반적으로 사용되는 용량
- general:
- 600-800 IU/day
- deficiency:
- 1,000-5,000 IU/day
상한량: 4,000 IU/day
연구에서 사용된 용량
| 용량 | 기간 | 효과 | 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 |
권장 복용 시간: With a fat-containing meal for optimal absorption
Safety & Side Effects
보고된 부작용
- ⚠ Hypercalcemia at very high doses (nausea, vomiting, weakness)
- ⚠ Kidney stones with excessive long-term use
- ⚠ Constipation
- ⚠ Metallic taste
알려진 상호작용
- ● Thiazide diuretics (may increase risk of hypercalcemia)
- ● Corticosteroids (reduce vitamin D absorption and metabolism)
- ● Orlistat and cholestyramine (reduce fat-soluble vitamin absorption)
일일 최대 섭취 허용량: 4,000 IU/day
건강기능식품을 복용하기 전에 반드시 의료 전문가와 상담하십시오.
Frequently Asked Questions
Does 비타민D help with 원형 탈모증?
How much 비타민D should I take for 원형 탈모증?
Are there side effects of 비타민D?
How strong is the evidence for 비타민D and 원형 탈모증?
Related Evidence
References
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