Supplement stacks / Calcium + Vitamin K

Can You Take Calcium with Vitamin K?

Calcium and Vitamin K: no interactions flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

Safety at a glance

Medium risk
Safety score7/10

This score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.

What the AI-written analysis says

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.

Calcium

From the AI-written analysis.

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.

Common side effects:
  • Constipation
  • Bloating
  • Gas
Warnings:
  • Consult healthcare provider if you have kidney disease or are on certain medications.

Vitamin K

From the AI-written analysis.

Safe for most individuals; high doses may interfere with anticoagulant therapy.

Typical dosage: 90-120 mcg daily, depending on age and gender.

Common side effects:
  • Nausea
  • Diarrhea
  • Stomach cramps
Warnings:
  • Consult healthcare provider if you are on anticoagulants.

Timing

Taking calcium and vitamin K in the morning with food may enhance absorption and reduce gastrointestinal discomfort.

Watch out for

  • Monitor for potential interactions with anticoagulants and adjust vitamin K intake accordingly.

Frequently asked questions

Can you take Calcium and Vitamin K together?

Calcium and Vitamin K: no interactions flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

What score does the Calcium and Vitamin K combination get?

The Calcium and Vitamin K combination is scored 7/10 (medium risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. 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.

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What your DNA adds

Some genes in a raw 23andMe or AncestryDNA file are linked to how the body handles nutrients. The DNA report says what yours are linked to and, where there is one, which blood test would tell you more.

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AI-written analysis generated August 11, 2026, checked by our interaction rules · How our analysis works