Anticoagulation UK

27 June 2019

Eating more vitamin K found to help, not harm, patients on warfarin

A new clinical trial suggests that patients on warfarin benefit from increasing their vitamin K intake, as long as they keep their intake levels consistent.

Warfarin is often used to prevent blood clots that cause heart attacks and strokes, and its dosage must be calibrated to balance the risk of clots against the risk of uncontrolled bleeding. Since warfarin counteracts the activity of vitamin K in the blood, large swings in vitamin K intake can disrupt this balance. Providers often suggest that patients limit their intake as a result.

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