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Vitamin K1

Phylloquinone, the main dietary form of vitamin K. Essential for blood clotting. Different from K2, which focuses on bones and arteries.

🌅 Morning🍽️ With fatty foods👤 +12 years

💡 Absorption: Easily obtained from leafy green vegetables. K2 (MK-7) is generally preferable as a supplement.

⚠️ Caution: Contraindicated with anticoagulants (warfarin, acenocoumarol). Warfarin works by blocking vitamin K. Consult a doctor before supplementing.

Interactions with other supplements

⚠️
Vitamin ECaution

Vitamin E at high doses may antagonize vitamin K and increase bleeding risk.

📚 Scientific references (3)▼
Phylloquinone intake and coronary calcification (Shea MK et al., Atherosclerosis)(2009)

Higher K1 intake associated with reduced progression of coronary artery calcification.

Vitamin K and bone metabolism (Cockayne S et al., Arch Intern Med)(2006)

Vitamin K supplementation reduces fracture risk: meta-analysis of RCTs.

Dietary vitamin K and risk of hip fracture (Booth SL et al., Am J Clin Nutr)(2000)

Women with low vitamin K1 intake have significantly higher hip fracture risk.

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Product comparator (2)

Sorted by cost per dose, from cheapest to most expensive

💰 Best price per dose
Solgar Vitamina K1 100mcg - 100 Comprimidos
Solgar Vitamin K1 100mcg - 100 Tablets

Solgar US

10.44€0.10€/dose~3.13€/month
💊 100mcg vitamina K1📦 100 servings★ 4.6
Amazon🚚 Free with Prime
Buy
Vitamina K Complex K2+K1 2200mcg - 120 Capsulas
Vitamin K Complex K2+K1 2200mcg - 120 Capsules

Vitamaze DE

17.97€0.15€/dose~4.49€/month
💊 100mcg K1 + 200mcg K2 MK-7📦 120 servings★ 4.4
Amazon🚚 Free with Prime
Buy

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