All Supplements
Iron vs Vitamin B2 (Riboflavin)
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Iron
Vitamin B2 (Riboflavin)
Typical Dosage
8-18 mg daily for adults (varies by age and gender)
1.1–1.6 mg daily
Best Form
Ferrous sulphate
Riboflavin (free form)
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
With meals for optimal absorption
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
Vitamin B2 (Riboflavin) Benefits
✓Energy production and metabolism
✓Antioxidant protection
✓Eye health and vision
✓Nervous system support
✓Skin and hair health
✓Migraine prevention
Can You Take Both Together?
In most cases, Iron and Vitamin B2 (Riboflavin) 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 Vitamin B2 (Riboflavin) 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.