Back to All Reviews
#20 in Vitamins Third-Party Tested

Sports Research Vitamin K2 (MK-7)

by Sports Research

"MenaQ7 vitamin K2 in coconut MCT oil — the calcium-directing vitamin that keeps calcium in bones, not arteries"

Amazon Rating
4.7/5
Reviews
10,000+
Price Range
$14-18
Servings
60 softgels
Non-GMO Project VerifiedGMP Certified
Our Editorial Rating
8.6
Very Good
FormSoftgel
CategoryVitamins
SubcategoryVitamin K2 (MK-7)
View on Amazon

Overview

Sports Research Vitamin K2 provides 100mcg of vitamin K2 as MK-7 (MenaQ7) in a coconut MCT oil softgel. MenaQ7 is the most clinically studied form of vitamin K2, with research showing it activates osteocalcin (directing calcium into bones) and matrix GLA protein (preventing calcium from depositing in arteries). Vitamin K2 is the essential partner to vitamin D3 — while D3 increases calcium absorption, K2 ensures that calcium goes to the right places. The coconut MCT oil carrier enhances absorption of this fat-soluble vitamin.

Key Ingredients

IngredientAmount
Vitamin K2 (MK-7, MenaQ7)100 mcg
Coconut MCT OilCarrier

Pros & Cons

What We Like

  • MenaQ7 (most studied K2 form)
  • Coconut MCT oil for absorption
  • Essential D3 companion
  • Prevents arterial calcification
  • 10,000+ Amazon reviews

What Could Be Better

  • Only 60 softgels
  • Interacts with blood thinners (warfarin)
  • 100mcg may be low for some protocols
  • Premium price for single vitamin

Who Is This For?

Best For

  • Vitamin D3 supplementation companion
  • Bone health optimization
  • Cardiovascular calcium management
  • Those wanting MenaQ7 quality

Not Ideal For

  • Those on warfarin/blood thinners
  • Those already getting K2 from diet (natto)
  • Those wanting D3+K2 combo

Our Verdict

8.6/10 — Very Good

Sports Research Vitamin K2 is the premium standalone K2 supplement with MenaQ7 and MCT oil carrier. Essential for anyone taking vitamin D3 — K2 ensures calcium goes to bones, not arteries. The most important vitamin most people aren't taking.

Alternatives to Consider