All Supplements
Vitamin B3 (Niacin) vs Grape Seed Extract
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B3 (Niacin)
Grape Seed Extract
Typical Dosage
14-16 mg daily
150–300 mg daily
Best Form
Nicotinic acid (niacin)
Standardised extract (95% proanthocyanidins)
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With meals to minimise flushing
With meals for optimal absorption
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
Grape Seed Extract Benefits
✓Supports cardiovascular health and blood pressure regulation
✓Provides potent antioxidant protection against free radical damage
✓May improve blood flow and vascular endothelial function
✓Supports collagen integrity and skin health
✓May reduce inflammation and support joint health
Can You Take Both Together?
In most cases, Vitamin B3 (Niacin) and Grape Seed Extract 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 Grape Seed Extract if your primary goal is: supports cardiovascular health and blood pressure regulation. 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.