Differences between vitamin K1 and K2 | Bruce Ames

Posted on April 3rd 2022 (almost 3 years)

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In this clip, Rhonda talks about the difference between vitamin K1 and K2. Vitamin K1, also known as phylloquinone, is critical for the production of blood coagulants in the liver. Vitamin K2, also known as menaquinone, is important for preventing calcification of blood vessels and producing strong bones. Natto is a fermented soy bean that is rich in vitamin K2. Warfarin, also known as coumadin, is a medication used to prevent blood clots by inhibiting the recycling of vitamin K1. Unfortunately it also inhibits the recycling of vitamin K2 and has been shown to increase vessel calcification and bone fractures. Supplementing with menaquinone also does not affect warfarin’s therapeutic ability to prevent blood clots.

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