All Supplements
Vitamin K2 (MK-7) vs Sea Kelp
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin K2 (MK-7)
Sea Kelp
Typical Dosage
100-200mcg MK-7 daily
1-2 grams daily
Best Form
MK-7 (Menaquinone-7)
Powder
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With a fat-containing meal, ideally with Vitamin D3
With meals to enhance absorption and reduce nausea
Vitamin K2 (MK-7) Benefits
✓Bone mineralisation
✓Cardiovascular protection (reduces arterial calcification)
✓Works synergistically with Vitamin D3
✓Dental health
✓May reduce fracture risk
Sea Kelp Benefits
✓Supports thyroid function and healthy hormone production
✓Provides bioavailable iodine and essential minerals
✓Supports healthy metabolism and energy levels
✓May promote joint and connective tissue health
✓Contains polysaccharides with prebiotic properties
Can You Take Both Together?
In most cases, Vitamin K2 (MK-7) and Sea Kelp 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 Sea Kelp if your primary goal is: supports thyroid function and healthy hormone 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.