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Vitamin D3 and K2 with Calcium

Vitamin D3, Vitamin K2, and Calcium

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Meta Information

ID:d3-k2-with-calcium
Name:Vitamin D3 and K2 with Calcium
Schema Version:1.5

Alternate Names

  • Vitamin D3, Vitamin K2, and Calcium

Intervention Type

synergistic_therapy

Expected Cost Mean

Low Cost:
5
High Cost:
15
Cost Type:
monthly
Description:
Widely available over-the-counter combination or individual supplements.

Summary

This combination works synergistically to support skeletal and cardiovascular health. Vitamin D3 enhances the body's ability to absorb calcium from the gut, while Vitamin K2 helps direct that calcium into bones and teeth, preventing its deposition in arteries and other soft tissues. This dual action is critical for maintaining bone mineral density and vascular flexibility, two key components of healthspan.

Purpose

Supports bone density and cardiovascular health by managing calcium.

Card Summary

A synergistic trio that supports bone mineral density and cardiovascular health by ensuring proper calcium absorption and deposition.

Drug Class

Drugs In Class

Empty Array

Impact

Score:
5.5
Justification:
Crucial for bone and cardiovascular health, especially in deficient or at-risk populations.

Evidence

Grade:
A
Score:
8.5
Justification:
Extensive human RCTs on individual components for bone health and deficiency.

Safety

Score:
3.8
Justification:
Risk of hypercalcemia and vascular issues with improper, excessive dosing.

Flags

  • Excessive calcium supplementation, particularly without K2, is linked to increased risk of arterial calcification and kidney stones.
  • Vitamin K2 can interfere with anticoagulant drugs like Warfarin (Coumadin).
  • High-dose Vitamin D supplementation without monitoring can lead to toxicity (hypercalcemia).
  • Prioritizing dietary calcium from sources like dairy, leafy greens, and sardines is generally considered safer than supplementation.

Verdict

A key combo for bone health; get calcium from diet first.

Created

2026-04-27T13:08:16.898693Z

Model

Gemini 3.1 Pro (High)

Delivery

Route:
oral
Scope:
  • systemic

Indication

Focus:
healthspan
Description:
This combination works synergistically to support skeletal and cardiovascular health. Vitamin D3 enhances the body's ability to absorb calcium from the gut, while Vitamin K2 helps direct that calcium ...

Typical Protocol

  • Take 2000-5000 IU of Vitamin D3 daily, ideally with a fatty meal to improve absorption.
  • Combine with 100-200 mcg of Vitamin K2, typically in the MK-7 form, taken daily.
  • Calcium supplementation is only recommended to offset a documented dietary shortfall, not in addition to a calcium-rich diet.