Check if you can take Vitamin K and Calcium together. See interaction data, 5-regional dosage standards (FDA/EFSA/TGA/CNS/MHLW), and expert recommendations.
Based on our database, there are no known harmful interactions between vitamin k and calcium. However, this does not guarantee safety — consult a healthcare provider.
| Standard | vitamin k | calcium |
|---|---|---|
| US (FDA) | 120 / 1000 mcg (RDA/UL) | 1000 / 2500 mg (RDA/UL) |
| EU (EFSA) | 120 / 1000 mcg (RDA/UL) | 1000 / 2500 mg (RDA/UL) |
| AU (TGA) | 120 / 1000 mcg (RDA/UL) | 1000 / 2500 mg (RDA/UL) |
| CN (CNS) | 120 / 1000 mcg (RDA/UL) | 800 / 2000 mg (RDA/UL) |
| JP (MHLW) | 120 / 1000 mcg (RDA/UL) | 800 / 2300 mg (RDA/UL) |
Values shown as RDA (Recommended Dietary Allowance) / UL (Tolerable Upper Intake Level). Sources: NIH, FDA, EFSA, FSANZ, CNS, MHLW.
Based on our database of supplement interactions, no known interaction exists between vitamin k and calcium. This means they are generally safe to take together at recommended doses. However, this does not guarantee safety — always consult your healthcare provider, especially if you take medications or have health conditions.
Dosage recommendations vary by region. Check the dosage table on this page for specific RDA (Recommended Dietary Allowance) and UL (Tolerable Upper Intake Level) values from FDA, EFSA, TGA, CNS, and MHLW standards. Do not exceed the UL for either supplement.
This page only checks one pair. Use NutriAudit to check your full supplement stack for interactions, duplicates, and safe dosages.
Not medical advice. Always consult a qualified healthcare professional for personal medical decisions.