Vitamin A (Retinol)
Essential vitamin for vision, immune function, and skin health.
VitaminsWith FoodStrong Evidence
Mechanism of Action
Supports rhodopsin production for vision, epithelial cell differentiation, and immune cell function.
Dosing
- Recommended Range
- 2500-5000 IU
- Optimal Timing
- With Food
- Evidence Level
- Strong
Safety Information
Interactions
- May increase toxicity with retinoid medications
- Competes with vitamin D
Contraindications
- Pregnancy (high doses)
- Liver disease
Comprehensive Information
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Key Benefits
Natural Food Sources
Optimal Timing & Absorption
Signs of Deficiency
Synergistic Supplements
Practical Tips
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