Quick Reference
- Scientific Rating
-
4.8/ 5.0
- Standardized Form
- Retinyl Palmitate or Beta-Carotene (provitamin A)
Vitamin A refers to a group of fat-soluble retinoids, including retinol and retinyl esters. It is critical for the formation of rhodopsin (a light-absorbing protein in the retina) and plays a vital role in cellular differentiation, particularly for the maintenance of the heart, lungs, and skin epithelium.
Table of Contents
Clinical Summary
Clinically utilized for supporting vision, immune health, and skin integrity.
Dosage Guidelines
700mcg to 900mcg RAE daily.
Safety & Side Effects
High doses of preformed Vitamin A can be teratogenic (cause birth defects) and hepatotoxic. Beta-carotene does not carry this toxicity risk.
Known Interactions
May interact with retinoid medications (e.g., isotretinoin) leading to hypervitaminosis A.
Scientific References
- 1
- 2
- 3
- 4
- 5
Medical Disclaimer
The information provided in this clinical review is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment.
*These statements have not been evaluated by the Food and Drug Administration (FDA). This product or ingredient is not intended to diagnose, treat, cure, or prevent any disease.
Always consult your physician or other qualified health provider with any questions you may have regarding a medical condition, or before beginning any new diet, fitness, supplement, or treatment regimen, especially if you have pre-existing medical conditions or are taking prescribed medications.