MenaQ7® PRO vitamin K2 as MK-7 for healthy calcium metabolism, bone mineralization and vascular wellness.*
RetzlerRx® Vitamin K2 180 mcg provides a targeted dose of MenaQ7® PRO, a branded form of vitamin K2 as menaquinone-7, or MK-7. Vitamin K2 supports the activation of proteins involved in directing calcium toward bone while helping maintain balanced calcium distribution throughout the body.*
This formula is designed for adults seeking focused vitamin K2 support rather than a broader multinutrient bone formula. It may be particularly relevant for individuals who already receive adequate calcium and vitamin D but want additional support for vitamin K-dependent proteins involved in bone and vascular health.*
Primary use: Healthy calcium metabolism, bone mineralization and vascular wellness*
Key ingredient: MenaQ7® PRO vitamin K2 as MK-7
Amount per capsule: 180 mcg
Suggested use: Follow the current product label or your healthcare professional’s guidance
Servings per container: Confirm from product label
Typical bottle duration: Confirm from capsule count and suggested use
Dosage form: Capsule
What Is Vitamin K2?
Vitamin K2 is a fat-soluble vitamin involved in the activation of proteins that regulate calcium metabolism. Two of the best-known vitamin K-dependent proteins are osteocalcin, which is involved in bone mineralization, and matrix Gla protein, which participates in maintaining normal calcium balance in vascular tissues.
Vitamin K2 does not create bone by itself or remove calcium from arteries. Its role is to support the normal activation of proteins that help the body use and distribute calcium appropriately.*
Who May Consider This Formula?
RetzlerRx® Vitamin K2 180 mcg may be appropriate for adults seeking nutritional support for:
- Healthy calcium metabolism*
- Bone mineralization and skeletal maintenance*
- Activation of vitamin K-dependent proteins*
- Balanced calcium distribution*
- Vascular wellness as part of a broader cardiovascular strategy*
- A focused vitamin K2 supplement without additional calcium or magnesium*
Vitamin K2 needs vary based on diet, medications, vitamin D intake, bone health, cardiovascular risk and overall medical history. Supplementation should not replace bone-density assessment, cardiovascular evaluation or individualized medical care when those are appropriate.
Why This Formulation?
This formula uses MenaQ7® PRO, a branded form of vitamin K2 as MK-7. MK-7 is commonly selected for nutritional supplements because it remains in circulation longer than shorter-acting vitamin K forms, allowing once-daily use in many formulations.
The 180 mcg amount provides a focused vitamin K2 dose for adults seeking dedicated calcium-metabolism support. Unlike combination bone formulas, this product does not automatically add calcium, magnesium or vitamin D, which may be useful when those nutrients are already being addressed separately.
How Is It Different From Less Expensive Vitamin K Products?
Price alone does not determine whether a vitamin K supplement is appropriate. However, products may differ in the form of vitamin K used, amount per capsule, stability, raw-material sourcing and whether the formula provides vitamin K1, vitamin K2 as MK-4 or vitamin K2 as MK-7.
RetzlerRx® Vitamin K2 uses MenaQ7® PRO as MK-7 rather than an unspecified vitamin K blend. The more useful comparison is the exact vitamin K form, amount per serving, number of capsules required and bottle duration—not simply the front-label price.
Suggested Use
Follow the directions on the current product label, or use as directed by your healthcare professional.
Because vitamin K2 is fat-soluble, it is commonly taken with a meal containing dietary fat. Confirm the label directions before publishing a specific timing recommendation.
How Long Does One Bottle Last?
Bottle duration depends on the total capsule count and the recommended daily serving.
If the suggested use is 1 capsule daily:
- A 30-capsule bottle lasts approximately 30 days.
- A 60-capsule bottle lasts approximately 60 days.
- A 90-capsule bottle lasts approximately 90 days.
Confirm the current capsule count and label directions before publishing an exact bottle duration.
Important Cautions
Do not use vitamin K2 without medical guidance if you take warfarin or another vitamin K-antagonist anticoagulant. Changes in vitamin K intake can affect anticoagulation control, and intake should remain consistent under the supervision of the clinician managing that medication.
Consult a qualified healthcare professional before use if you are pregnant, breastfeeding, taking prescription medication or managing a chronic medical condition.
Review other supplements for overlapping vitamin K2, vitamin D or calcium. More is not automatically better, and the total plan should reflect diet, laboratory findings, medications and individual health goals.
Keep out of reach of children and follow all label-specific storage and caution instructions.
Why RetzlerRx®?
RetzlerRx® formulations are selected and developed for use within a physician-led Preventive Longevity Medicine practice. We prioritize meaningful ingredient forms and doses, responsible formulation, appropriate quality standards and clinical restraint.
Supplements are tools—not substitutes for diagnosis, medical treatment, resistance exercise, adequate protein, balanced nutrition or appropriate evaluation of bone and cardiovascular health.
Frequently Asked Questions
What is vitamin K2 as MK-7?
MK-7 is a form of vitamin K2 that supports the activation of proteins involved in calcium metabolism, bone mineralization and balanced calcium distribution. It is commonly used in once-daily vitamin K2 supplements because it remains in circulation longer than some shorter-acting vitamin K forms.*
What is MenaQ7® PRO?
MenaQ7® PRO is a branded vitamin K2 ingredient provided as menaquinone-7, or MK-7. It is used in nutritional formulations focused on vitamin K-dependent proteins, calcium metabolism and bone support.*
Why is vitamin K2 important for bone health?
Vitamin K2 supports the activation of osteocalcin, a vitamin K-dependent protein involved in binding calcium within the bone matrix. Bone health also depends on vitamin D, calcium, magnesium, protein, hormones, resistance exercise and other factors.
Does vitamin K2 remove calcium from arteries?
Vitamin K2 should not be described as removing existing arterial calcium. It supports the activation of proteins involved in normal calcium regulation, including matrix Gla protein, but it is not a treatment for vascular calcification or cardiovascular disease.
Should vitamin K2 be taken with vitamin D3?
Vitamin D3 and vitamin K2 have complementary roles in calcium metabolism, but they do not always need to be taken in the same product. The appropriate amounts depend on dietary intake, vitamin D status, other supplements, medications and individual health needs.
Can I take vitamin K2 with a calcium supplement?
Possibly. Vitamin K2 is often used alongside calcium and vitamin D, but total intake should be reviewed to avoid unnecessary duplication. Calcium supplementation should be individualized rather than assumed to be appropriate for everyone.
Can I take vitamin K2 if I use warfarin?
Do not start, stop or substantially change vitamin K intake without guidance from the clinician managing your anticoagulation therapy. Vitamin K2 can affect the action of warfarin and other vitamin K-antagonist medications.
How long does one bottle last?
Bottle duration depends on the capsule count and suggested use. If the directions are 1 capsule daily, the number of capsules generally equals the approximate number of days supplied.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. The information provided is for educational purposes and is not a substitute for individualized medical advice.