Vitamin K2 MK-4, 100 mcg – Smart Calcium Metabolism, Strong Bones & Teeth, Vascular Elasticity & Long-Term Mobility

Vitamin K2 MK-4, 100 mcg, Nutricost provides menatetrenone (MK-4) — the active form of vitamin K2 — in a clear dose that’s easy to integrate into a daily routine. MK-4 plays an essential role in “directing” calcium where the body needs it: into the bones and teeth, not soft tissues. This happens through the activation (carboxylation) of vitamin K–dependent proteins, such as osteocalcin (in bone) and MGP protein (Matrix Gla Protein) in the vasculature, both involved in the proper management of calcium. Each serving provides 100 mcg of K2 (MK-4), equivalent to 80% DV*, in a formula focused on efficiency and simplicity to support mineral density, vascular elasticity, and an active life.

Detailed Benefits of Vitamin K2 MK-4

• “Smart” calcium metabolism

Calcium is the skeleton’s main “brick,” but it needs the right biochemical signals to be used optimally. Vitamin K2 MK-4 activates proteins that “guide” calcium.
✅ Supports physiological use of calcium in bones and teeth
✅ Helps reduce the risk of calcium deposition in soft tissues
✅ Aids mineral balance within a varied diet

• Strong, resilient bones

Osteocalcin, activated by K2, supports the fixation of minerals within the bone matrix. During demanding periods or with age, this biochemical “switch” matters.
✅ Contributes to mineral density and bone micro-architecture
✅ Supports remodeling processes for “elastic,” not brittle, bones
✅ Support for posture and daily activities without discomfort

• Healthy teeth and fortified enamel

Well-directed calcium also reaches dental structures. K2 MK-4 helps maintain strong enamel, in synergy with adequate mineral intake.
✅ Contributes to the integrity of enamel and dentin
✅ Supports the natural resistance of teeth against mechanical factors
✅ Nutritional foundation for everyday oral care

• Vascular elasticity and circulatory comfort

The vitamin K–dependent MGP protein is involved in maintaining arterial elasticity. K2 MK-4 activates MGP, supporting “mineral cleanliness” in vessel walls.
✅ Helps maintain arterial suppleness
✅ Contributes to a balanced vascular environment compatible with an active lifestyle
✅ Supports efficient circulation during everyday efforts

• Synergy with Vitamin D3 and calcium

D3 “opens the door” for calcium absorption, while K2 “guides” it where it should go. Together they create a logical nutritional tandem.
✅ D3 + K2 = absorption + direction
✅ Ideal context for calcium supplementation when needed
✅ Supported mineral balance, relevant long-term

• Mobility, effort, and recovery

The skeleton is the “load-bearing structure” for daily activities and sport. When mineralization is coherent, movement feels smoother.
✅ Supports resistance to mechanical demands (walking, running, training)
✅ Contributes to post-effort comfort through a solid structural base
✅ Helps preserve agility in everyday activities

• Support in key life stages

K2 needs may rise with age or during hormonal and lifestyle changes.
✅ Relevant for adults 40+ focused on bone capital
✅ Useful for sedentary schedules seeking structural support
✅ Potential support in routines oriented toward “healthy aging”

• Clear nutritional parameters

Transparency supports consistency.
— Vitamin K2 (menatetrenone, MK-4): 100 mcg – 80% DV*
✅ Simple daily dose, easy to integrate
✅ Well-defined active ingredient, without opaque blends
✅ Suitable for long-term routines with easy monitoring

• Why MK-4 (menatetrenone)?

K2 includes different families (MK-4, MK-7, etc.). MK-4 shows distinct tissue distribution and a rapid “presence” in tissues.
✅ Prompt metabolic integration and targeted support
✅ Helps activate structurally relevant K-dependent proteins
✅ A preferred option in formulas that prioritize immediate efficiency

• Balance all year long

Sun exposure, diet, and lifestyle can vary. A steady nutritional base brings predictability.
✅ Consistency in calcium handling, regardless of season
✅ Compatible with diverse eating plans (Mediterranean, low-carb, etc.)
✅ Easy to pair with a movement and daily self-care routine

• Inspired nutritional synergies

An “orchestrated” approach maximizes each nutrient’s efficiency.
✅ D3 – absorption; K2 – direction; Calcium – structural “brick”
✅ Magnesium – cofactor for hundreds of reactions, including mineral balance
✅ Collagen + quality proteins – support for the bone matrix

• Modern lifestyle, solid structure

Long desk hours, on-the-go workouts, or days full of errands all call for a healthy musculoskeletal foundation.
✅ Supports steadier posture during extended schedules
✅ Enables smoother transitions between work, movement, and downtime
✅ Daily comfort that translates into productivity and tone

• Oral comfort and a confident smile

When calcium is properly distributed, it shows in your smile too.
✅ Enamel supported from within
✅ Sense of resistance during chewing
✅ A piece of a holistic smile-care “toolkit”

• Minimalist & efficient – the Nutricost philosophy

Less “noise,” more clarity.
✅ Precise active ingredient: K2 MK-4, 100 mcg per serving
✅ Clear label, easy-to-follow dosage
✅ Quality-value ratio designed for consistent use

• Habits that amplify results

Small routines give consistency to nutritional benefits.
✅ Varied diet with sources of calcium, D3, and magnesium
✅ Load-bearing exercise (brisk walking, functional training)
✅ Hydration, restorative sleep, and active breaks throughout the day

• Well-being you can feel

When calcium “traffic” is well organized, the body works more harmoniously.
✅ Ease of movement and daily activity
✅ Sense of structural stability and calm energy
✅ Confidence in a routine that works for you, day after day

Vitamin K2 MK-4, 100 mcg, Nutricost is a modern base for smart calcium metabolism: it helps fortify bones and teeth, supports vascular elasticity, and contributes to everyday mobility. With a clean formula, clear dose, and solid nutritional logic (K2 for direction, in synergy with D3 and calcium), this product offers practical support for an active lifestyle and long-term comfort.




 

Directions

As a dietary supplement, take 1 capsule daily with a glass of water or as directed by your healthcare professional.

Other Ingredients

Rice flour, hypromellose (cellulose) capsule, dextrin.

Warnings

For healthy adults aged 18+. Consult a healthcare professional before use if you are pregnant or nursing, taking medications, or have a medical condition. Keep out of reach of children. Do not use if safety seal is broken or missing.
Store in a cool, dry place.