Spinach is high in vitamin K, which plays a role in blood clotting and can interact with blood-thinning medications like warfarin. Instead of avoiding spinach entirely, the safest approach is consistency: keep daily vitamin K intake relatively steady so medication dosing can be managed appropriately.
Practical steps:
Alternative greens with lower vitamin K (arugula, iceberg lettuce) can be rotated in, but any change should be communicated to healthcare providers. Personalized medical advice is important for safe management while on anticoagulants.