All Supplements
Vitamin B3 (Niacin) vs Glycine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B3 (Niacin)
Glycine
Typical Dosage
14-16 mg daily
3-5g daily
Best Form
Nicotinic acid (niacin)
Powder
Key Benefits
5
6
Evidence Rating
★★★★
★★★★
Best Time
With meals to minimise flushing
Evening for sleep benefits; anytime for general health
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
Glycine Benefits
✓Improves sleep quality and sleep onset
✓Supports collagen formation and joint health
✓Enhances cognitive function and memory
✓Reduces muscle wasting and supports muscle recovery
✓Promotes relaxation and reduces anxiety
✓Supports immune function
Can You Take Both Together?
In most cases, Vitamin B3 (Niacin) and Glycine 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 Glycine if your primary goal is: improves sleep quality and sleep onset. 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.