Supplement stacks / Calcium + Vitamin K
Can You Take Calcium with Vitamin K?
Calcium and Vitamin K can generally be taken together without significant interactions. However, both supplements should be taken with caution, especially in individuals on anticoagulant medications. It is advisable to consult a healthcare provider for personalized recommendations.
Conservative, AI-assisted reading of publicly available medical sources (NIH, Mayo Clinic, WebMD, Examine.com). Informational only — it can't account for your medications, conditions, or genetics.
Generally safe when taken as directed; excessive intake may lead to kidney stones or cardiovascular issues.
Typical dosage: 1000-1200 mg daily, depending on age and gender.
- Constipation
- Bloating
- Gas
- Consult healthcare provider if you have kidney disease or are on certain medications.
Safe for most individuals; high doses may interfere with anticoagulant therapy.
Typical dosage: 90-120 mcg daily, depending on age and gender.
- Nausea
- Diarrhea
- Stomach cramps
- Consult healthcare provider if you are on anticoagulants.
Taking calcium and vitamin K in the morning with food may enhance absorption and reduce gastrointestinal discomfort.
- Monitor for potential interactions with anticoagulants and adjust vitamin K intake accordingly.
Can you take Calcium and Vitamin K together?
Calcium and Vitamin K can generally be taken together without significant interactions. However, both supplements should be taken with caution, especially in individuals on anticoagulant medications. It is advisable to consult a healthcare provider for personalized recommendations.
How safe is the Calcium and Vitamin K combination?
Our analysis of publicly available medical sources scores this combination 7/10 (medium risk). This is an informational estimate, not medical advice — always confirm with a healthcare professional.
When should you take Calcium and Vitamin K?
Taking calcium and vitamin K in the morning with food may enhance absorption and reduce gastrointestinal discomfort.
What should you watch out for when combining Calcium and Vitamin K?
Monitor for potential interactions with anticoagulants and adjust vitamin K intake accordingly.
Taking more than these two? Run your complete supplement list — plus any medications — through the live checker for a combined analysis.
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Analysis generated August 11, 2026 · Sources include NIH, Mayo Clinic, WebMD, and Examine.com · How our analysis works