Vitamin A لـ تساقط الشعر بسبب نقص التغذية

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

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الخلاصة

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 مقابل: control Outcome: None التأثير: None None

المجتمع المدروس: 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 مقابل: Placebo التأثير: Complete remission within 5 months None

narrative_review

Nutrition and skin: Kids are not just little people.

Dose: None مقابل: Placebo التأثير: 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 مقابل: None Outcome: Vitamin A role in alopecia development التأثير: None None

المجتمع المدروس: Patients with alopecia (theoretical)

Key Statistics

الدراسات

المشاركون

↑

Positive

التقييم

Referenced Papers

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

Alternative therapies in … 2021 10 اقتباسات

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

Cureus 2020 5 اقتباسات

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

Clinics in dermatology 2016 19 اقتباسات

Retinoids putting the "a" in alopecia. Other

The Journal of … 2013 10 اقتباسات

Dosage & Usage

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

الجرعات الشائعة

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

الحد الأعلى: 3,000 mcg RAE/day (10,000 IU preformed vitamin A)

الجرعات المدروسة في الأبحاث

الجرعة	المدة	التأثير	ن
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	--

أفضل وقت للتناول: With a fat-containing meal; consult your healthcare provider about appropriate dosage

Safety & Side Effects

الآثار الجانبية المُبلّغ عنها

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

التفاعلات المعروفة

● 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)

الحد الأقصى المسموح به: 3,000 mcg RAE/day (10,000 IU preformed vitamin A)

استشر مقدم الرعاية الصحية دائماً قبل البدء بأي مكمل غذائي.

Frequently Asked Questions

Does Vitamin A help with تساقط الشعر بسبب نقص التغذية?

Based on 4 studies with 1 participants, there is preliminary evidence that needs more research that Vitamin A may support تساقط الشعر بسبب نقص التغذية management. Our evidence grade is D (Very Early Research).

How much Vitamin A should I take for تساقط الشعر بسبب نقص التغذية?

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 تساقط الشعر بسبب نقص التغذية?

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

مكونات أخرى لـ تساقط الشعر بسبب نقص التغذية

السيلينيوم A Biotin B L-Cysteine D فيتامين B12 F حمض الفوليك F

Vitamin A لحالات أخرى

Scalp Inflammation (Folliculitis & Dermatitis) D

الخلاصة السريعة

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

Evidence Strength30%

Low confidence

تفصيل الدراسات

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

قارن البدائل

اعرف كيف تقارن المكونات الأخرى لهذه الحالة.

عرض جميع المكونات لـ تساقط الشعر بسبب نقص التغذية

اعرف المزيد

إخلاء مسؤولية FDA: لم تُقيَّم هذه البيانات من قبل إدارة الغذاء والدواء (FDA). لا تهدف المنتجات والمعلومات الواردة في هذا الموقع إلى تشخيص أو علاج أو شفاء أو الوقاية من أي مرض. تستند تقييمات الأدلة المعروضة إلى تحليلنا للأبحاث المحكّمة المنشورة ولا تُشكّل نصيحة طبية. استشر مقدم الرعاية الصحية دائماً قبل البدء بأي نظام مكملات.