Comparison
Vitamin B3 vs Vitamin A
TL;DR
Quick comparison: Vitamin B3 and Vitamin A have 0 overlapping categories and appear together in 3 products.
- Choose Vitamin B3 if: Water-soluble vitamin (niacin) involved in over 400 enzymatic reactions....
- Choose Vitamin A if: Fat-soluble vitamin essential for vision, immune function, and cellular communic...
- Take both if: You want comprehensive coverage across 0 shared categories.
565 products
analyzed in our comprehensive supplement database
Source · MoodStack Database (2026)
Side-by-side comparison
| Feature | Vitamin B3 | Vitamin A |
|---|---|---|
| Type | vitamin | vitamin |
| Common Dosage | 14-16 mg NE daily | 700-900 mcg RAE daily |
| Best Bioavailability | Niacinamide (NAM) (90%) | Retinol (90%) |
| Categories | 0 | 2 |
| Available Products | 0 | 0 |
Vitamin B3
Vitamin A
Can you take both?
Yes, Vitamin B3 and Vitamin A can typically be taken together. In fact, we found 3 products in our database that contain both supplements, suggesting they complement each other well.
Key differences
Option A
Vitamin B3
Water-soluble vitamin (niacin) involved in over 400 enzymatic reactions.
Common forms
- Niacinamide (NAM) · 90% bioavailability
- Nicotinic acid (Niacin) · 90% bioavailability
- Inositol hexanicotinate · 60% bioavailability
Option B
Vitamin A
Fat-soluble vitamin essential for vision, immune function, and cellular communication. Exists as preformed vitamin A (retinoids) in animal products and provitamin A (carotenoids) in plants.
Categories
Common forms
- Retinol · 90% bioavailability
- Retinyl acetate · 85% bioavailability
- Retinyl palmitate · 85% bioavailability
Products with both Vitamin B3 and Vitamin A
We found 2 products that combine both supplements:
Frequently asked
What is the difference between Vitamin B3 and Vitamin A?
Can I take Vitamin B3 and Vitamin A together?
Which is more popular: Vitamin B3 or Vitamin A?
Related comparisons & products
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.