All Supplements
Vitamin C vs Vitamin A
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin C
Vitamin A
Typical Dosage
500-1,000mg daily
700–900 mcg RAE daily (adults)
Best Form
Ascorbic Acid
Retinyl Palmitate
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
Split doses throughout the day for best absorption
With food containing fat for optimal absorption
Vitamin C Benefits
✓Immune system support
✓Antioxidant protection
✓Collagen synthesis for skin health
✓Iron absorption enhancement
✓May reduce cold duration
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
Can You Take Both Together?
In most cases, Vitamin C and Vitamin A 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 C if your primary goal is: immune system support. Choose Vitamin A if your primary goal is: supports healthy vision and prevents night blindness. 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.