Vitamin A 用于 Acute Diarrhea
DSome evidence in vitamin A-deficient populations. WHO recommends for measles-associated diarrhea. Not effective in non-deficient individuals.
结论
Some evidence in vitamin A-deficient populations. WHO recommends for measles-associated diarrhea. Not effective in non-deficient individuals.
Key Study Findings
研究人群: children with persistent diarrhea, lactose intolerance, and gut dysbiosis in low/middle-income countries
研究人群: HFD-induced NAFLD mouse model
研究人群: Vegan athletes (narrative review)
研究人群: G20 countries population, 1990-2021
研究人群: General population (review)
研究人群: Children with acute diarrhea
Key Statistics
3
研究数量
500
受试者
Positive
等级
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
- general:
- 700-900 mcg RAE/day (RDA for adults)
- gutbarriersupport:
- 900 mcg RAE/day from mixed sources
- deficiencycorrection:
- 200,000 IU single dose (WHO protocol for severe deficiency, medical supervision)
上限: 3,000 mcg RAE/day (preformed vitamin A; beta-carotene has no established UL)
研究中使用的剂量
| 剂量 | 持续时间 | 效果 | N |
|---|---|---|---|
| None | -- | Neutral | -- |
| None | 12 weeks | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| B vitamins and glucuronolactone | -- | Positive | -- |
| None | -- | Mixed | 48 |
| None | -- | Mixed | -- |
| None | 1.0 weeks | Mixed | -- |
最佳服用时间: With meals containing fat for better absorption
Safety & Side Effects
已报告的副作用
- ⚠ Hepatotoxicity at chronic high doses of preformed vitamin A
- ⚠ Birth defects (teratogenic at high doses during pregnancy — avoid >3,000 mcg RAE/day)
- ⚠ Nausea, headache, and dizziness
- ⚠ Bone density reduction with long-term excess
已知相互作用
- ● Retinoid medications (isotretinoin, tretinoin — additive toxicity risk)
- ● Orlistat (reduces absorption of fat-soluble vitamins)
- ● Alcohol (increases hepatotoxicity risk of vitamin A)
- ● Tetracycline antibiotics (increased risk of intracranial pressure)
可耐受最高摄入量: 3,000 mcg RAE/day (preformed vitamin A; beta-carotene has no established UL)
在开始服用任何补充剂之前,请务必咨询您的医疗保健提供者。
Frequently Asked Questions
Does Vitamin A help with Acute Diarrhea?
How much Vitamin A should I take for Acute Diarrhea?
Are there side effects of Vitamin A?
How strong is the evidence for Vitamin A and Acute Diarrhea?
Related Evidence
其他成分用于 Acute Diarrhea
Vitamin A 用于其他健康状况
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