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

When prescribed the anticoagulant drug warfarin, many patients are told to limit foods rich in vitamin K, such as green vegetables. The results of a new clinical trial call that advice into question and suggest patients on warfarin actually benefit from increasing their vitamin K intake–as long as they keep their intake levels consistent.

Guylaine Ferland, Suzanne Chahine, Nancy Presse, Marie-Pierre Dube, Anil Nigam, Mark Blostein, Simon deDenus, Sylvie Perreault, Jean-Claude Tardif, Increasing Dietary Vitamin K Intake Stabilizes Anticoagulation Therapy in Warfarin-Treated Patients with a History of Instability: A 24-week Randomized Controlled Trial (OR36-04-19), Current Developments in Nutrition, Volume 3, Issue Supplement_1, June 2019, nzz035.OR36–04–19, https://doi.org/10.1093/cdn/nzz035.OR36-04-19

https://academic.oup.com/cdn/article/3/Supplement_1/nzz035.OR36-04-19/5516660