Compare Supplements

Side-by-side comparison of 2 supplements

K8.5

Potassium

Moderate safety

Vk14.0

Vitamin K1

Moderate safety

Evidence

Evidence Score8.5/10

Studies: 42

Meta-analyses: 9

Evidence Score4/10

Studies: 10

Meta-analyses: 0

Dosage & timing

Dosage:

99-500mg daily from supplements (food provides more)

Best Time:

With meals · with food

Take with food

Form:

Potassium Citrate or Potassium Gluconate

Dosage:

Dietary adequacy ~90-120mcg/day; supplements often 100-500mcg

Best Time:

With meals · with food

Take with food

Form:

Phylloquinone (K1)

What you'll notice

📉 Lower Blood Pressurepositive

2-4 weeks

💪 Reduced Muscle Crampspositive

1-2 weeks

🧠 Stroke Preventionpositive

Long-term

🩸 Supports normal clottingpositive

Days

🦴 Bone support (minimal)neutral

6-12 months

Safety

Moderate safety

Contraindications:

Kidney disease
Hyperkalemia
Use of potassium-sparing diuretics

Drug Interactions:

ACE inhibitors
Potassium-sparing diuretics
NSAIDs

Side Effects:

GI upsetHyperkalemia

Moderate safety

Contraindications:

Warfarin / vitamin-K-antagonist anticoagulant use (major interaction)

Drug Interactions:

Warfarin (and other vitamin-K-antagonists)

Side Effects:

Allergic reaction (rare, IV forms)

Works well with

enhances

complementary

complementary

complementary

How they work together

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