Carlson - Vitamina K2, MK-4 (Menatetrenona), Suplemento de Vitamina K, Salud Ósea y Cardíaca, Sin Soja, 180 Cápsulas

What is vitamin K2 and why is it important?

Vitamin K is a fat-soluble nutrient essential for the body. There are two main forms: K1 (phylloquinone), found in green leafy vegetables, and K2 (menaquinone), produced by intestinal bacteria and also available in fermented foods. Vitamin K2 is subdivided into several types, the most studied being MK-4 (menatetrenone) and MK-7. MK-4 is the form found in animal tissues and supplements like this one from Carlson.

This vitamin plays a crucial role in activating vitamin K-dependent proteins, such as osteocalcin (for bone health) and matrix Gla proteins (for cardiovascular health). Therefore, an adequate intake of vitamin K2 contributes to the maintenance of normal bones and normal blood clotting.

Health benefits of vitamin K2

According to the European Food Safety Authority (EFSA), vitamin K contributes to normal blood clotting and the maintenance of normal bones. These are the science-backed benefits:

• Bone health: Vitamin K2 activates osteocalcin, a protein that binds calcium to the bone matrix, helping to maintain bone density and strength.
• Cardiovascular health: It activates matrix Gla protein (MGP), which inhibits the calcification of arteries, promoting vascular flexibility.
• Normal clotting: Vitamin K is necessary for the synthesis of clotting factors in the liver, contributing to proper hemostasis.

MK-4 is the form most directly used by the body, with a short half-life that allows for rapid action in tissues.

How much vitamin K2 do you need? Recommended dosage

The adequate daily dose of vitamin K2 can vary depending on age, health status, and diet. There is no specific recommended daily intake (RDI) for K2 in the EU, but there is for total vitamin K (men: 70 µg/day; women: 60 µg/day, according to EFSA). However, many people opt for higher doses for specific benefits.

Each Carlson Vitamin K2 MK-4 capsule provides 1 mg (1000 µg) of menatetrenone, a higher amount than the RDI. This dosage has been used in studies on bone and cardiovascular health. It is recommended to take one capsule daily, preferably with a meal containing fat to improve absorption.

Always consult a healthcare professional before starting any supplementation, especially if you are taking anticoagulant medications.

Differences between MK-4 and MK-7

There are two main forms of vitamin K2 in supplements:

• MK-4 (menatetrenone): Synthetic form identical to the natural one. It has a short half-life (about 2-4 hours) and is rapidly distributed to tissues. It is used in higher doses and is the most studied form in clinical research.
• MK-7 (menaquinone-7): Form of bacterial origin (like natto). It has a long half-life (about 72 hours) and remains stable in the blood. It is needed in lower doses (45-100 µg).

Carlson uses MK-4, ideal for those seeking rapid availability and a long history of use in studies.

How to choose the best vitamin K2 supplement

When selecting a vitamin K2 supplement, consider:

• Form: MK-4 or MK-7 according to your preferences. MK-4 is the form used in most clinical trials.
• Dosage: Check the amount per capsule. Carlson offers 1 mg (1000 µg) per capsule.
• Quality: Look for reputable brands, such as Carlson, which has been manufacturing since 1965 with purity and potency standards.
• Allergens: This product is soy-free, suitable for people with soy sensitivity.
• Format: 180 capsules per package, enough for almost 6 months of daily use.

Carlson guarantees the absence of artificial ingredients and performs quality tests in its certified facilities.

Possible side effects and contraindications

Vitamin K2 is generally safe at recommended doses. Side effects are rare, but in high doses, it could cause mild digestive discomfort. Important precautions:

• Anticoagulants: If you are taking medications like warfarin (Sintrom), consult your doctor, as vitamin K interferes with their action.
• Pregnancy and lactation: Safe doses have not been established; consult a professional.
• Do not exceed the dose: Toxicity levels for vitamin K have not been established, but excessive consumption can interfere with medications.

This product is a food supplement and should not be used as a substitute for a balanced diet. Maintaining a varied diet rich in green leafy vegetables is essential.