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Magnesium L-Threonate vs Vitamin B3 (Niacin)
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Magnesium L-Threonate
Vitamin B3 (Niacin)
Typical Dosage
1,500-2,000mg (providing ~144mg elemental Mg)
14-16 mg daily
Best Form
Magnesium L-Threonate (Magtein)
Nicotinic acid (niacin)
Key Benefits
5
5
Evidence Rating
★★★
★★★★
Best Time
Evening — has calming/sleep-promoting effects
With meals to minimise flushing
Magnesium L-Threonate Benefits
✓Crosses blood-brain barrier
✓May improve memory and learning
✓Sleep quality improvement
✓Brain magnesium levels
✓Potential neuroprotective effects
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, Magnesium L-Threonate 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 Magnesium L-Threonate if your primary goal is: crosses blood-brain barrier. 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.