Jarrow Formulas® K-Right™ provides a synergistic blend of 3 Vitamin K forms plus D3 to support balanced bone & cardiovascular wellness!* Carboxylation of osteocalcin relies on Vitamin K, & Vitamin D3 helps to generate osteocalcin.* Jarrow Formulas® MK-7 is derived from natural fermentation with Bacillus subtilis subsp. natto.