Life Extension Super K – Vitamin K Supplement with K1 and K2, 90 Softgels

The Role of Vitamin K in Heart and Bone Health

Vitamin K is essential for activating proteins that regulate blood clotting and calcium metabolism. Two key proteins – osteocalcin and matrix Gla protein (MGP) – rely on vitamin K for activation. Osteocalcin helps bind calcium to bone, while MGP inhibits calcium deposition in soft tissues like arteries. This dual action supports both strong bones and a healthy cardiovascular system. Research suggests higher vitamin K2 intake is linked to better arterial elasticity and reduced risk of vascular calcification. Super K’s combination of K1 and K2 ensures both pathways are supported.

Vitamin K1 vs. K2: Why Both Matter

Vitamin K1 (phylloquinone) is mainly found in green leafy vegetables and is primarily used by the liver for blood clotting. Vitamin K2 (menaquinones) comes from bacteria and fermented foods, has a longer half-life, and is distributed to tissues like bone and blood vessels. Super K includes both: K1 for immediate clotting needs, and K2 (especially MK-7) for sustained activation of MGP and osteocalcin throughout the body. This comprehensive approach covers all of vitamin K’s functions.

What Makes Life Extension Super K Unique?

Life Extension Super K offers a complete vitamin K supplement with 2000 mcg of K1 and 1180 mcg of K2 in two bioavailable forms: MK-4 and MK-7. This once-daily formula targets heart and arterial health while helping maintain healthy calcium balance. By providing both K1 and multiple K2 forms, Super K goes beyond single-form products for a more holistic supplementation strategy. Many people don't get enough vitamin K from diet alone, and Super K fills that gap with a science-backed blend.

How Much Vitamin K Do You Need?

The Adequate Intake (AI) for vitamin K is 90 mcg for women and 120 mcg for men. Super K provides substantially more – 2000 mcg K1 and 1180 mcg K2 – to support optimal activation of vitamin K-dependent proteins. This higher dose is based on research suggesting many individuals require more than the AI for extra-skeletal benefits. Take one softgel daily with a meal containing fat for best absorption, as vitamin K is fat-soluble.

Why Choose Life Extension Super K?

Life Extension is a trusted brand known for high-quality, science-driven supplements. Super K is Non-GM, gluten free, and manufactured in the USA with globally sourced ingredients. Each batch undergoes rigorous testing, and a Certificate of Analysis is available upon request. The once-daily softgel format is convenient, and the inclusion of both K1 and two forms of K2 makes this product stand out from simpler vitamin K supplements. Whether you're focused on heart health, bone density, or overall wellbeing, Super K provides a well-researched foundation.

Potential Side Effects and Interactions

Vitamin K is generally well tolerated with no known toxicity at high intakes. However, individuals taking anticoagulant medications like warfarin should consult a healthcare provider before supplementing, as vitamin K can interfere with blood thinning effects. Those with a history of blood clotting disorders should also seek medical advise. Mild digestive upset may occur in some individuals. If you experience any adverse effects, discontinue use and consult a professional. Always read the label and follow directions for use.

Frequently Asked Questions

Can I take Super K with other supplements? Yes, it pairs well with vitamin D and calcium for bone health. However, consult your healthcare provider if you are on any medications.

Is this supplement suitable for vegans? The softgels likely contain gelatine; check the label for specific dietary information.

How long does one bottle last? With 90 softgels and a once-daily serving, it lasts three months.

This product is not intended to diagnose, treat, or prevent any disease. Always read the label and follow the directions for use.