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.
564 products
analyzed in our comprehensive supplement database
Source: MoodStack Database (2026)

Side-by-Side Comparison

FeatureVitamin B3Vitamin A
Typevitaminvitamin
Common Dosage14-16 mg NE daily700-900 mcg RAE daily
Best BioavailabilityNicotinic acid (Niacin) (90%)Retinol (90%)
Categories02
Available Products00

Vitamin B3

Typevitamin
Common Dosage14-16 mg NE daily
Best BioavailabilityNicotinic acid (Niacin) (90%)
Categories0
Available Products0

Vitamin A

Typevitamin
Common Dosage700-900 mcg RAE daily
Best BioavailabilityRetinol (90%)
Categories2
Available Products0

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

Vitamin B3

Water-soluble vitamin (niacin) involved in over 400 enzymatic reactions.

Categories:

Common Forms:

  • Nicotinic acid (Niacin) (90% bioavailability)
  • Niacinamide (NAM) (90% bioavailability)
  • Inositol hexanicotinate (60% bioavailability)

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.

Common Forms:

  • Retinol (90% bioavailability)
  • Retinyl palmitate (85% bioavailability)
  • Retinyl acetate (85% bioavailability)

Products Containing Both Vitamin B3 and Vitamin A

We found 3 products that combine both supplements:

Frequently Asked Questions

What is the difference between Vitamin B3 and Vitamin A?

Vitamin B3 and Vitamin A are both important supplements with distinct properties. Vitamin B3 Water-soluble vitamin (niacin) involved in over 400 enzymatic reactions., while 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..

Can I take Vitamin B3 and Vitamin A together?

Based on our analysis of 3 products that contain both, yes, Vitamin B3 and Vitamin A can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Vitamin B3 or Vitamin A?

In our database of 564 products, Vitamin B3 appears in 9 products, while Vitamin A appears in 57 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.

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