Nutricost Vitamin K2 (MK-7) 100mcg
by Nutricost
"Essential vitamin D3 companion — MK-7 form of K2 for calcium direction to bones, not arteries"
Overview
Nutricost Vitamin K2 provides 100mcg of vitamin K2 as MK-7 (menaquinone-7), the most bioavailable and long-acting form of vitamin K2. Vitamin K2 is the critical companion to vitamin D3 — while D3 increases calcium absorption, K2 directs that calcium to bones and teeth rather than allowing it to deposit in arteries and soft tissues. Without adequate K2, high-dose vitamin D supplementation may actually increase cardiovascular calcification risk. MK-7 has a half-life of 72 hours (vs 1-2 hours for MK-4), providing sustained activity. This is the essential supplement that most vitamin D users are missing.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Vitamin K2 (MK-7, Menaquinone-7) | 100 mcg |
Pros & Cons
What We Like
- MK-7 form (most bioavailable K2)
- 120 capsules (4-month supply)
- Essential companion to vitamin D3
- Directs calcium to bones (not arteries)
- Excellent Nutricost value
What Could Be Better
- Interacts with blood thinners (warfarin)
- 100mcg (some protocols recommend 200mcg)
- K2 awareness is still growing
- Should be taken with fat for absorption
Who Is This For?
Best For
- Anyone taking vitamin D3
- Bone health optimization
- Cardiovascular calcification prevention
- Those wanting D3+K2 protocol
Not Ideal For
- Those on warfarin/blood thinners
- Those not taking vitamin D
- Those wanting D3+K2 combo pill
Our Verdict
Nutricost K2 MK-7 is the essential supplement that every vitamin D user should add to their stack. The science on K2's role in calcium direction is compelling, and MK-7 is the superior form. At 120 capsules for under $16, there's no excuse not to pair this with your D3.