Vitamin A
Vitamin A describes a group of metabolites involved in cell and tissue growth, and several bodily functions, including vision, bone metabolism, and immune function. Vitamin A metabolites include preformed vitamin A — retinols, retinals, retinyl esters, and retinoic acids — and precursors (i.e., provitamin A molecules) like beta-carotene, which can be converted by the body into the other forms of vitamin A.
Quick Answer
What it is
Vitamin A describes a group of metabolites involved in cell and tissue growth, and several bodily functions, including vision, bone metabolism, and immune function. Vitamin A metabolites include preformed vitamin A — retinols, retinals, retinyl esters, and retinoic acids — and precursors (i.e., provitamin A molecules) like beta-carotene, which can be converted by the body into the other forms of vitamin A.
Key findings
- Grade B: Diarrhea Symptoms (Infant Health)
- Grade B: Infant Death Risk (Infant Health)
- Grade C: Collagen Content (Skin Health)
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts: Vitamin A
Quick Facts: Vitamin A
- Best Evidence:Grade B
- Conditions Studied:5
- Research Outcomes:16
- Grade B Findings:2
- Key Effect:Skin Health
Detailed Outcomes
Evidence by Condition
Best grade per condition (each condition may have multiple outcomes)
Research Citations (14)
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