Vitamin A para Pérdida Capilar por Deficiencia Nutricional

Based on 4 studies with 1 total participants. 3/4 studies show positive effects.

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Conclusión

Based on 4 studies with 1 total participants. 3/4 studies show positive effects.

Key Study Findings

Review

Vitamins A, B, C, and D: A Short Review for the Dermatologist.

Dose: None vs: control Outcome: None Efecto: None None

Población: patients with uncombable hair syndrome

Case report n=1 20 weeks

Combined Diet and Supplementation Therapy Resolves Alopecia Areata in a Paediatric Patient: A Case Study.

Dose: Multi-nutrient supplement, zinc sulfate, fish oil with vitamin D; diet rich in vitamins A and D, zin vs: Placebo Efecto: Complete remission within 5 months None

narrative_review

Nutrition and skin: Kids are not just little people.

Dose: None vs: Placebo Efecto: narrative review; discusses role of nutrition from prenatal period on skin immune responses; highlig not_applicable

Review

Retinoids putting the "a" in alopecia.

Dose: None vs: None Outcome: Vitamin A role in alopecia development Efecto: None None

Población: Patients with alopecia (theoretical)

Key Statistics

Estudios

Participantes

↑

Positive

Calificación

Referenced Papers

Vitamins A, B, C, and D: A Short Review for the Dermatologist. Review

Alternative therapies in … 2021 10 citas

Combined Diet and Supplementation Therapy Resolves Alopecia Areata in a Paediatric Patient: A Case Study. Case Report

Cureus 2020 5 citas

Nutrition and skin: Kids are not just little people. Review

Clinics in dermatology 2016 19 citas

Retinoids putting the "a" in alopecia. Other

The Journal of … 2013 10 citas

Dosage & Usage

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

Dosificaciones de uso común

general:: 700-900 mcg RAE/day (2,300-3,000 IU)

Límite superior: 3,000 mcg RAE/day (10,000 IU preformed vitamin A)

Dosificaciones estudiadas en la investigación

Dosificación	Duración	Efecto	N
None	--	Positive	--
Multi-nutrient supplement, zinc sulfate, fish oil with vitamin D; diet rich in vitamins A and D, zin	20 weeks	Positive	1
None	--	Positive	--
None	--	Negative	--

Mejor momento para tomar: With a fat-containing meal; consult your healthcare provider about appropriate dosage

Safety & Side Effects

Efectos secundarios reportados

⚠ Hair loss at excessive doses (hypervitaminosis A)
⚠ Dry skin and lips
⚠ Headache and nausea at high doses
⚠ Teratogenicity — contraindicated in pregnancy at high doses

Interacciones conocidas

● Retinoid medications (isotretinoin, tretinoin — additive toxicity risk)
● Tetracycline antibiotics (increased intracranial pressure risk)
● Anticoagulants (high-dose vitamin A may increase bleeding risk)
● Hepatotoxic drugs (additive liver stress at high doses)

Ingesta máxima tolerable: 3,000 mcg RAE/day (10,000 IU preformed vitamin A)

Consulte siempre a su profesional de salud antes de comenzar cualquier suplemento.Siempre consulte a su profesional de salud antes de comenzar cualquier suplemento.

Frequently Asked Questions

Does Vitamin A help with Pérdida Capilar por Deficiencia Nutricional?

Based on 4 studies with 1 participants, there is preliminary evidence that needs more research that Vitamin A may support Pérdida Capilar por Deficiencia Nutricional management. Our evidence grade is D (Very Early Research).

How much Vitamin A should I take for Pérdida Capilar por Deficiencia Nutricional?

Studies have used various dosages. A commonly studied range is 700-900 mcg RAE/day (2,300-3,000 IU). Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Vitamin A?

Reported side effects may include Hair loss at excessive doses (hypervitaminosis A), Dry skin and lips, Headache and nausea at high doses, Teratogenicity — contraindicated in pregnancy at high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Vitamin A and Pérdida Capilar por Deficiencia Nutricional?

We rate the evidence as Grade D (Very Early Research). This rating is based on 4 peer-reviewed studies with 1 total participants. The overall direction of effect is positive.

Related Evidence

Otros ingredientes para Pérdida Capilar por Deficiencia Nutricional

Selenio A Biotin B L-Cysteine D Vitamina B12 F Folato F

Vitamin A para otras condiciones

Scalp Inflammation (Folliculitis & Dermatitis) D

Veredicto rápido

Based on 4 studies with 1 total participants. 3/4 studies show positive effects.

Evidence Strength30%

Low confidence

Desglose de estudios

RCT (0)Meta (0)Other (4)

Comparar alternativas

Vea cómo se comparan otros ingredientes para esta condición.

Ver todos los ingredientes para Pérdida Capilar por Deficiencia Nutricional

Más información

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.