The Vitamin that Slashes Liver Cancer in Clinical Trials — Key Takeaways
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The Vitamin that Slashes Liver Cancer in Clinical Trials
Dalton (Analyze & Optimize)Mar 9, 2026
Read the originalTake 45 mg/day of Vitamin K2 as MK4 to dramatically reduce liver cancer risk — a 2004 JAMA trial showed an 87% adjusted risk reduction in high-risk women with viral cirrhosis.
Key takeaways
K2 deficiency generates DCP, a potent liver tumor growth factor
K2 deficiency generates DCP, a potent liver tumor growth factor
- Without K2, prothrombin conversion fails and DCP accumulates — 91% of HCC patients have measurable DCP; healthy people don't.
- DCP activates c-Met, VEGFR2, and angiogenic cytokines (VEGF, EGF, TGF-α), enabling tumor growth, invasion, and vascularization.
45mg K2 (MK4) cut liver cancer risk by 87% in cirrhosis patients
45mg K2 (MK4) cut liver cancer risk by 87% in cirrhosis patients
- 2004 JAMA RCT: women with viral cirrhosis on 45mg/day MK4 saw 80% raw risk reduction, 87% after covariate adjustment.
- Second study: K2 reduced 3-year recurrence from 91.6% to 64.3% and mortality from 36% to 13% post-curative treatment.
45mg/day MK4 is the therapeutic dose used across all liver cancer trials
45mg/day MK4 is the therapeutic dose used across all liver cancer trials
- All cited studies used 45mg MK4 daily — far above typical bone-health doses (~100–200mcg); this is a megadose protocol.
- Benefits were strongest in prevention and early-stage cases; high-DCP patients (advanced disease) showed no benefit in one study.
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In this piece
- 2004 JAMA Trial: K2 Prevents Liver Cancer in Cirrhosis Patients
- K2 Reduces Recurrence and Death After Curative Liver Cancer Treatment
- DCP Biomarker Stratification and Meta-Analysis Findings
- Mechanism: How K2 Deficiency Drives Liver Cancer Growth
- Dietary Sources and Supplementation Recommendation
“91% of patients with this liver cancer have measurable DCP - healthy people don't have it.”
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