All Supplements
Vitamin B3 (Niacin) vs Citrulline
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B3 (Niacin)
Citrulline
Typical Dosage
14-16 mg daily
6-8g per day
Best Form
Nicotinic acid (niacin)
L-Citrulline
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With meals to minimise flushing
30-60 minutes before exercise or training
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
Citrulline Benefits
✓Enhanced blood flow and vasodilation
✓Improved exercise performance and endurance
✓Reduced muscle fatigue and soreness
✓Better erectile function
✓Cardiovascular health support
Can You Take Both Together?
In most cases, Vitamin B3 (Niacin) and Citrulline 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 B3 (Niacin) if your primary goal is: energy production and metabolism. Choose Citrulline if your primary goal is: enhanced blood flow and vasodilation. 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.