Vitamin D & Vitamin K

Info Synergy
Vitamin D → Vitamin K →
Info Synergy

Vitamin K2 helps direct calcium (absorbed via vitamin D) into bones and away from arteries.

Mechanism

Vitamin D increases calcium absorption. Without adequate K2, calcium may deposit in arteries instead of bones.

Recommendation

Consider taking vitamin K2 (MK-7) alongside vitamin D, especially at higher vitamin D doses. A common ratio is 100mcg K2 per 5,000 IU vitamin D.

Tolerable upper intake limits

Reference values for safe daily intake of these supplements.

Vitamin D
100.000 mcg (4000 IU)
adults NIH ODS / IOM

Risk of hypercalcemia at very high doses.

All interactions Check your stack
© 2026 Noyemi. All rights reserved. Privacy · Terms
Medical Disclaimer: Noyemi provides information from published research for educational purposes only. This content is not medical advice and does not replace consultation with a qualified healthcare provider. Always consult your doctor before starting, stopping, or changing any supplement regimen, especially if you take medications or have existing health conditions.