All Supplements
Vitamin A vs Melatonin
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin A
Melatonin
Typical Dosage
700–900 mcg RAE daily (adults)
0.5–5 mg
Best Form
Retinyl Palmitate
Immediate release tablet
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With food containing fat for optimal absorption
30–60 minutes before bedtime
Vitamin A Benefits
✓Supports healthy vision and prevents night blindness
✓Enhances immune system function and disease resistance
✓Promotes skin health and reduces acne
✓Supports bone health and calcium absorption
✓Protects against age-related macular degeneration
Melatonin Benefits
✓Improved sleep onset and quality
✓Jet lag reduction
✓Circadian rhythm regulation
✓Antioxidant protection
✓Shift work sleep disorder management
Can You Take Both Together?
In most cases, Vitamin A and Melatonin can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Vitamin A if your primary goal is: supports healthy vision and prevents night blindness. Choose Melatonin if your primary goal is: improved sleep onset and quality. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.