Vitamin D-3 & K-2: Strong Bones, Smart Calcium Fixation and Cardiovascular Balance – D3 + K2 (MK-4) Synergy for Structural Resilience, Muscles and Immunity

Vitamin D-3 & K-2 from Now Foods combines two key micronutrients that work together to optimize calcium and phosphorus metabolism, supporting bone mineral density, muscle function and tissue integrity. The formula delivers Vitamin D3 (cholecalciferol) 25 mcg / 1,000 IU (125% RDA) derived from lanolin – the form used by the body to maintain optimal vitamin D levels – and Vitamin K2 (menaquinone-4, MK-4) 45 mcg, the bioactive form involved in carboxylation of vitamin K-dependent proteins, such as osteocalcin and MGP (matrix Gla protein). Together, D3 and K2 favor absorption and correct direction of calcium: D3 facilitates mineral entry into bloodstream, while K2 helps utilize it where needed – in bones and teeth – supporting, at the same time, maintenance of soft tissues within physiological parameters.

Detailed Benefits of Vitamin D-3 & K-2, Now Foods

• Optimizing calcium and phosphorus metabolism

Vitamin D3 is essential for intestinal absorption of calcium and phosphorus, two fundamental minerals for bone mineralization. By supporting calcium transporter expression at intestinal level, D3 contributes to maintaining mineral balance.
✅ Efficient calcium/phosphorus absorption.
✅ Mineral homeostasis within physiological limits.
✅ Foundation for structural resistance.

• Bone mineral density and long-term resistance

Well-assimilated calcium must be fixed in bone matrix. Here Vitamin K2 (MK-4) intervenes, which activates osteocalcin – the protein that "anchors" calcium in bone tissue. D3 + K2 synergy offers double support: provides available calcium and directs its use in bones.
✅ Efficient calcium fixation in bone.
✅ Support for mineral density and bone architecture.
✅ Resistance to daily demands.

• Calcium "direction": bones & teeth, not soft tissues

Vitamin K2 (MK-4) activates, besides osteocalcin, also MGP, a protein involved in keeping calcium away from soft tissues, within physiological limits. This "smartening" of calcium flow perfectly complements the increased absorption induced by D3.
✅ Correct use of calcium where it should be.
✅ Clarity in mineral metabolism.
✅ General structural balance.

• Muscle function, strength and coordination

Vitamin D supports normal muscle function, influencing contraction and tone. Adequate D3 status is reflected in supporting strength and coordination, which can make daily movements safer and more natural.
✅ Muscle contractility and resistance.
✅ Efficiency in functional gestures.
✅ Support for post-effort recovery.

• Strong teeth and enamel integrity

Calcium is crucial for dental tissues too. Through the combined role D3 (absorption) + K2 (osteocalcin carboxylation in dentin), the formula supports dental mineralization, contributing to maintaining strong and resilient teeth.
✅ Optimal mineralization.
✅ Well-maintained enamel.
✅ Comfort in daily oral routine.

• Cardiovascular balance within physiological limits

Coherent mineral metabolism is an ally for cardiovascular balance. By activating MGP, K2 supports keeping calcium out of soft tissues, while D3 ensures adequate flow of the mineral. The complementary approach supports harmonization of physiological processes.
✅ Mineral selection in tissues.
✅ Coherence between absorption and utilization.
✅ Support for general balance.

• Immunity and seasonal vitality

Vitamin D is involved in normal immune system function, modulating cellular responses within physiological limits. Adequate D3 levels support optimal immune vigilance, useful in periods with seasonal challenges.
✅ Daily immune tone.
✅ Calibrated response to environmental factors.
✅ Perceived well-being.

• Cognitive performance and mood

Vitamin D receptors are found in multiple tissues, including the brain. Correct nutritional status can support clarity and concentration, contributing to balanced mood, especially when life routine is intense.
✅ Focus and mental energy.
✅ Emotional balance.
✅ Smoother adaptation to daily rhythm.

• Validated synergy: D3 "brings" calcium, K2 "places" it

The major advantage of the formula is complementarity: D3 increases calcium bioavailability, K2 ensures targeted utilization by activating vitamin K-dependent proteins. Result: a complete strategy for skeleton, muscles and tissues.
✅ Logical completion of mechanisms.
✅ Efficiency with two synergistic levers.
✅ Sustainability over time.

• Fit with diverse lifestyles

Whether you spend a lot of time at the office, practice recreational sports or are always on the move, D3 & K2 is a versatile nutritional foundation. Works well alongside balanced nutrition, moderate sun exposure, constant movement and quality sleep.
✅ Flexibility in integration.
✅ Compatibility with varied routines.
✅ Consistency for perceived results.

Useful nutritional synergies

• Magnesium – cofactor for numerous enzymes involved in vitamin D metabolism and bone mineralization; helps maintain muscle balance.

• Calcium – the structural resource that, alongside D3 + K2, is absorbed and used where it should be.

• Type I & II collagen, silicon, boron – support for bone and connective matrix.

• Omega-3 (EPA/DHA) – support for general balance and tissue resilience.

Key objectives: bone density and resistance, targeted calcium fixation in bones and teeth, muscle function and coordination, cardiovascular balance within physiological limits, immunity support and daily vitality. The synergy between D3 (absorption and availability) and K2 (carboxylation and direction) makes Vitamin D-3 & K-2, Now Foods a modern nutritional pillar for strong structure and active life.




 

Directions for use

Take 1 capsule 1-2 times daily, with food.



 

Other ingredients

Rice flour, hypromellose (cellulose capsule), ascorbyl palmitate and silicon dioxide.
Not manufactured with wheat, gluten, soy, milk, egg, fish or shellfish ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Warnings

Store in a cool, dry place after opening.
For adults only. Consult physician if pregnant/nursing, taking any anticoagulants (such as warfarin, coumadin, heparin) or other medications or have a medical condition. Keep out of reach of children.
Natural color variation may occur in this product.