Proof.Fit

Vitamin K

14 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Heart health

Better heart calcification

Warfarin INR control

Strong
76,587
Bone health

Bone activation +ucOC↓

BMD +1–5%

Strong
12,437
Nutrition source

vitamin status +

bone density +

vascular stiffness -

Strong
8,396
Vascular health

CAC/AVC ↓ ~6%

Stiffness/PWV ↓, dp-ucMGP ↓

Strong
11,161
Blood circulation

Cardiac output +12%

Calcification/stiffness ↓

Mortality HR↓

Strong
11,274
Healthy aging

Bone health +9%

Vascular/mortality benefits

Inflammation −27.9%

Strong
15,821
Pregnancy support

Maternal K raises milk/baby levels

Reduces PIVH by ~20%

Strong
1,741
Metabolism

Vitamin K lowers glucose/insulin

Vitamin K lowers inflammation

Strong
3,271
Brain health

Clotting ↑, hemorrhage ↓

PIVH -20.8%

Clotting ↑, hemorrhage ↓

Moderate
721
Joint mobility

Bone support +5.7% BMD

Cramps reduced -2.67/week

Moderate
713
Immune support

Immune markers −27.9%

Symptoms, inflammation ↓

Moderate
745
Joint comfort

Hand OA −44%

RA inflammation ↓

Leg cramps −2.67/week

Moderate
659
Skin health

Bruising severity -20%

Rash severity women

Moderate
311
Skin repair

Bruising ↓; healing +

Early bruise relief; +

Wound contraction +10%

Weak
63