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Hi all; I'm a new member. Name is Rob and I'm a 79yr old man who had an aortic dissection w/ aortic valve replacement 20 yrs ago.

A MyHeartDiseaseTeam Member asked a question in Congestive Heart Failure group 💭

Is there anyone on warfarin who is also taking a K2+D3 supplement? Recently i had a coronary CT scan and had a CAC score over 6000. I then had an angiogram done which showed minor blockage and no need for any stents
Dr. put me on 5mg of rosuvastatin + 81mg aspirin but didn't say how I can keep this CAC score from getting any worse
After doing some research I think its possible that 20yrs of warfarin may be a contributing factor to this high number. I've read that warfarin can cause calcium… read more

January 20
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MyHeartDiseaseTeam

Can you take K2+D3 supplements while on warfarin for heart disease, especially with a high CAC score?

You're right to be cautious. Vitamin K2 can significantly interfere with warfarin's effectiveness, making your blood more prone to clotting even if you try to adjust your dosage yourself. This creates serious risks like Show Full Answer

Can you take K2+D3 supplements while on warfarin for heart disease, especially with a high CAC score?

You're right to be cautious. Vitamin K2 can significantly interfere with warfarin's effectiveness, making your blood more prone to clotting even if you try to adjust your dosage yourself. This creates serious risks like stroke or blood clots, which warfarin is meant to prevent.

When you add vitamin K2 through supplements, it competes with warfarin and can lower your INR unpredictably. Even small changes in vitamin K intake can push your INR outside the safe range, and this becomes dangerous without close medical supervision. The safest approach:

Your plan to discuss this with your doctor is absolutely the right move. Don't start K2 supplements on your own, even with warfarin adjustments. If your doctor agrees it's appropriate, you'd need:

* To start with a very low dose
* Much more frequent INR testing initially
* Careful warfarin dose adjustments by your medical team
* Consistent daily intake without major swings

Some research suggests vitamin K2 might help prevent calcium buildup in arteries, but the evidence is still early and the interaction with warfarin requires expert management. What you can do safely:

If you want modest vitamin K2 from food sources, you can eat foods like egg yolks, certain cheeses, and fermented vegetables regularly and consistently. The key is keeping your intake steady from week to week so your warfarin stays balanced.

Given your aortic valve replacement and 20 years on warfarin, this decision really needs your cardiologist's input. They can weigh the potential benefits against the clotting risks specific to your situation.

January 20

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