Peak K2 is menatetrenone (MK-4), a form of vitamin K2 made in the body form phyllo Quinone (vitamin K1) and distinct from the menaquinones made by probiotic bacteria. Available science indicates that vitamin K2 - and especially menatetrenone - is superior to Vitamin K1. Clinical trials have shown that high-dose vitamin K2 does not cause excessive or abnormal blood clotting, although it will interfere with "blood thinning" medications.
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