Feature
Iron
Glycine
Typical Dosage
8-18 mg daily for adults (varies by age and gender)
3-5g daily
Best Form
Ferrous sulphate
Powder
Key Benefits
5
6
Evidence Rating
★★★★
★★★★
Best Time
Take on an empty stomach with vitamin C for enhanced absorption; separate from calcium and caffeine by 2+ hours
Evening for sleep benefits; anytime for general health
Iron Benefits
✓Supports oxygen transport via haemoglobin
✓Enhances energy production and reduces fatigue
✓Improves cognitive function and concentration
✓Supports immune system function
✓Essential for healthy red blood cell formation
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, Iron 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 Iron if your primary goal is: supports oxygen transport via haemoglobin. 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.