All Supplements
Vitamin B12 vs Vitamin B3 (Niacin)
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B12
Vitamin B3 (Niacin)
Typical Dosage
500-1,000mcg daily
14-16 mg daily
Best Form
Methylcobalamin
Nicotinic acid (niacin)
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
Morning — may be energising
With meals to minimise flushing
Vitamin B12 Benefits
✓Energy production
✓Nerve function and protection
✓Red blood cell formation
✓DNA synthesis
✓May reduce homocysteine levels
Vitamin B3 (Niacin) Benefits
✓Energy production and metabolism
✓DNA repair and cellular health
✓Cardiovascular health and cholesterol support
✓Brain function and cognitive support
✓Skin health and nervous system function
Can You Take Both Together?
In most cases, Vitamin B12 and Vitamin B3 (Niacin) 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 B12 if your primary goal is: energy production. Choose Vitamin B3 (Niacin) if your primary goal is: energy production and metabolism. 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.