NOW Foods Vitamin K-2, 100mcg – 100 Capsules

What Is Vitamin K-2 and Why Do You Need It?

Vitamin K is a family of fat-soluble vitamins. The two main forms are K-1 (phylloquinone) from leafy greens and K-2 (menaquinones) from animal products and fermented foods. K-2 is further divided into subtypes, with MK-4 being one of the most studied. This form is found in small amounts in foods like egg yolks, butter, and liver, but many people do not get enough through diet alone. Supplementing with vitamin K-2 helps ensure you support your body’s natural calcium regulation and bone maintenance processes.*

Key Benefits of Vitamin K-2 Supplementation

• Bone Health Support: Vitamin K contributes to the maintenance of normal bones. Vitamin K-2 activates osteocalcin, a protein that binds calcium to the bone matrix, helping maintain strong, healthy bones.*
• Calcium Metabolism: By supporting proper calcium distribution, K-2 helps direct calcium to bones and teeth while supporting normal vascular function.*
• Heart Health: Emerging research suggests that adequate K-2 intake supports arterial elasticity and cardiovascular wellness, whilst these effects are not yet approved as health claims by EFSA.
• Synergy with Vitamin D: Vitamin K-2 works alongside vitamin D to enhance calcium absorption and utilisation, making them a powerful duo for overall skeletal health.*

Who May Benefit from Vitamin K-2?

Individuals with limited dietary intake of fermented foods (like natto) or animal products may benefit from vitamin K-2 supplementation. Older adults, those concerned about bone density, and people taking medications that interfere with vitamin K metabolism (such as certain antibiotics or anticoagulants) should consider adding K-2 to their regimen. Always consult your health care professional before starting any new supplement.

How Much Vitamin K-2 Should You Take?

Each capsule of NOW Foods Vitamin K-2 delivers 100 mcg of MK-4, a dosage that aligns with research used in bone health studies. For most adults, one capsule daily with a meal containing fat ensures optimal absorption. Higher doses may be appropriate under professional guidance. The adequate intake for vitamin K is 90–120 mcg per day for adults, but K-2 specifically has no established RDA; however, 100 mcg is a common supplementary amount.

Why Choose NOW Foods Vitamin K-2?

Vitamin K-2, specifically menaquinone-4 (MK-4), is a biologically active form of vitamin K that plays a vital role in supporting bone health and proper calcium metabolism.* Unlike vitamin K-1, which is primarily involved in blood clotting, K-2 helps direct calcium to where it’s needed most—your bones and teeth—while supporting healthy vascular function.* NOW Foods Vitamin K-2 provides 100 mcg of MK-4 per capsule in a convenient, once-daily serving.

What to Look for in a Quality Vitamin K-2 Supplement

NOW Foods is a trusted brand known for quality assurance. This product features the biologically active MK-4 form, is non-GMO, and is manufactured in facilities following GMPs. It contains no common allergens like gluten, soya, or dairy. The capsules are small and easy to swallow, making them convenient for daily uses. Third-party testing ensures purity and potency.

Safety and Potential Interactions

Vitamin K-2 is generally well tolerated. However, if you are taking blood thinners (e.g., warfarin), consult your doctor or pharmacist before supplementing with vitamin K, as it can interfere with medication. Vitamin K is not associated with toxicity at typical doses. Store in a cool, dry place after opening.

* These statements have been evaluated by the European Food Safety Authority. Vitamin K contributes to normal blood clotting and the maintenance of normal bones. Always read the label and follow directions for uses.