Pure Encapsulations, Nutrient 950 W/ Vitamin K, 180 CapsulesPure Encapsulations Nutrient 950 with Vitamin K Description Now with Metafolin L 5 MTHF With vitamin K Hypoallergenic This formula provides our Nutrient 950 without iron formula, enhanced with vitamin K1 and vitamin K2. Vitamin K1, phylloquinone, is the most common form of vitamin K and is found in plants and green vegetables. This formula also provides the most active and bioavailable forms of vitamin K2, menaquinone 7 (MK 7) and menaquinone 4 (MK