All Supplements
Iodine vs Vitamin B12
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Iodine
Vitamin B12
Typical Dosage
150 micrograms daily for adults
500-1,000mcg daily
Best Form
Potassium iodide
Methylcobalamin
Key Benefits
5
5
Evidence Rating
★★★★★
★★★★
Best Time
With meals to enhance absorption
Morning — may be energising
Iodine Benefits
✓Supports thyroid hormone production and function
✓Essential for cognitive development and brain health
✓Promotes healthy metabolic rate and energy levels
✓Supports reproductive health and foetal development
✓Aids immune system function and antioxidant defence
Vitamin B12 Benefits
✓Energy production
✓Nerve function and protection
✓Red blood cell formation
✓DNA synthesis
✓May reduce homocysteine levels
Can You Take Both Together?
In most cases, Iodine and Vitamin B12 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 Iodine if your primary goal is: supports thyroid hormone production and function. Choose Vitamin B12 if your primary goal is: energy production. 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.