Yes. Cabbage and other leafy greens are rich in vitamin K1 (phylloquinone). Regular, consistent portions of greens (cabbage, spinach, kale, broccoli) are an effective way to improve vitamin K intake. Because vitamin K is fat-soluble, pairing greens with healthy fats (like olive oil) can support absorption. If you take warfarin, the key is not avoiding greens but keeping intake steady to reduce INR fluctuations.