All Supplements
Vitamin B12 vs Glycine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B12
Glycine
Typical Dosage
500-1,000mcg daily
3-5g daily
Best Form
Methylcobalamin
Powder
Key Benefits
5
6
Evidence Rating
★★★★
★★★★
Best Time
Morning — may be energising
Evening for sleep benefits; anytime for general health
Vitamin B12 Benefits
✓Energy production
✓Nerve function and protection
✓Red blood cell formation
✓DNA synthesis
✓May reduce homocysteine levels
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 B12 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 B12 if your primary goal is: energy production. 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.