Jarrow Formulas MK-7 90 mcg - Forma bioactiva de vitamina K2 - 60 cápsulas blandas - Para la salud ósea y cardiovascular - Sin gluten

What is vitamin K2 and why is it important?

Vitamin K2, also known as menaquinone, is a fat-soluble form of vitamin K that plays a crucial role in bone and cardiovascular health. Unlike vitamin K1 (phylloquinone), which is found in leafy green vegetables and is primarily associated with blood clotting, K2 is more active and bioavailable, especially in its MK-7 form. This variant is obtained from natural sources such as bacterial fermentation and stands out for its long half-life in the body, which allows for sustained action. The Jarrow Formulas MK-7 supplement provides 90 mcg per softgel of this bioactive form, designed to complement the daily diet and promote nutritional balance.

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 two fundamental pillars of K2:

• 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 MGP (Matrix Gla Protein), which prevents the calcification of arteries and soft tissues, promoting vascular elasticity.

In addition, K2 contributes to the normal functioning of the immune system and the balance of calcium metabolism in the body. Incorporating this nutrient into the daily routine can be especially beneficial for people with low sun exposure, restrictive diets, or increased needs due to age.

How much vitamin K2 do you need? Recommended dosage

The daily dose of vitamin K2 can vary according to individual needs and the form used. For MK-7, studies typically use doses between 90 and 100 mcg per day. Jarrow Formulas MK-7 offers 90 mcg per softgel, with the recommendation to take one capsule daily, preferably with a meal containing fats to optimize its absorption. If you have specific health conditions or are taking anticoagulant medication, consult a healthcare professional before starting any supplementation.

Differences between MK-4 and MK-7: which one to choose?

Vitamin K2 comes in several forms, but the most common are MK-4 and MK-7. MK-4 is a synthetic form with a short half-life (a few hours), while MK-7 is of natural origin (by fermentation) and remains active in the body for up to 24-48 hours. This allows for simpler dosing and more stable blood levels. In addition, MK-7 has greater bioavailability and is associated with more potent effects on bone and cardiovascular health. For these reasons, MK-7 is the preferred form in most quality supplements.

How to choose the best vitamin K2 supplement

When selecting a vitamin K2 supplement, it is important to consider the form (MK-7), dose, purity, and absence of allergens. Jarrow Formulas MK-7 is a prominent option because:

• It provides 90 mcg of natural MK-7 per softgel.
• It is free of gluten, wheat, soy, dairy, egg, fish, shellfish, peanuts, and tree nuts.
• It is suitable for vegetarians (the capsule is bovine gelatin, not vegan, but without animal ingredients inside).
• It is manufactured by a recognized brand with GMP quality standards.

In addition, it is recommended to look for products that clearly specify the form of vitamin K2 and that have been third-party tested. This supplement meets these criteria, offering a clean and effective formula.

Possible side effects and contraindications

Vitamin K2 is generally well tolerated, and no significant adverse effects have been described with recommended doses. However, people taking anticoagulants (such as warfarin) should avoid vitamin K supplementation without medical supervision, as it can interfere with the treatment. It is also not recommended during pregnancy or lactation without prior consultation. As with any supplement, it is advisable to follow the manufacturer's instructions and not exceed the suggested daily dose. This product is a food supplement, it should not be used as a substitute for a balanced diet.