All Supplements
Vitamin K2 (MK-7) vs Iodine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin K2 (MK-7)
Iodine
Typical Dosage
100-200mcg MK-7 daily
150 micrograms daily for adults
Best Form
MK-7 (Menaquinone-7)
Potassium iodide
Key Benefits
5
5
Evidence Rating
★★★★
★★★★★
Best Time
With a fat-containing meal, ideally with Vitamin D3
With meals to enhance absorption
Vitamin K2 (MK-7) Benefits
✓Bone mineralisation
✓Cardiovascular protection (reduces arterial calcification)
✓Works synergistically with Vitamin D3
✓Dental health
✓May reduce fracture risk
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
Can You Take Both Together?
In most cases, Vitamin K2 (MK-7) and Iodine 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 K2 (MK-7) if your primary goal is: bone mineralisation. Choose Iodine if your primary goal is: supports thyroid hormone production and function. 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.