Can I take vitamin K2 long-term?Updated 15 days ago

Yes, vitamin K2 is suitable for long-term use. It is a fat-soluble vitamin, but the body stores only small amounts, as it is relatively quickly metabolized and excreted. Therefore, a regular daily intake is important.

Why is long-term use recommended?
Vitamin K2 performs a number of important functions in the body, including:

• Directing calcium to bones and teeth and helping protect the cardiovascular system by preventing calcium deposition in blood vessels.

• Supporting bone health – when supplementing with vitamin D3 long-term, it is important to also increase vitamin K2 intake.

Safety of long-term use
Vitamin K2 is generally considered very safe, even at higher doses. No known toxic effects have been reported. Doses up to 1000 mcg per day are considered safe for most healthy adults according to available expert sources.

Recommended dosage

• Adults (30+ years): 80–120 mcg per day

• People 50+ years: at least 180 mcg per day (due to higher risk of bone mass loss)

Contraindications
The only real contraindication is the use of certain oral anticoagulants (e.g., warfarin). In such cases, supplementation should be discussed with a healthcare professional familiar with drug–supplement interactions.