Posted in Sapiosexual Vitamin K & Blood Thinners Such as Coumadin – ConsumerLab.com August 6, 2025 Learn more about vitamin K, including info on interactions with blood thinners such as Coumadin and Jantoven, its effects on bones & impact on clotting. https://www.consumerlab.com/answers/does-vitamin-k-interfere-with-blood-thinner-medications/vitamin-k-blood-thinners/