this is a ‘rising star’ amongst scientists whose findings suggest that vitamin k contributes to the maintenance of normal bone. it also contributes to normal blood coagulation.our bodies obtain vitamin k in two forms k 1 is found in green leafy vegetables & k 2 is normally produced by the friendly bacteria in the digestive tract. this is why we have combined 45µg of k 2 & 30µg k 1 both natural as you would expect to conveniently provide 100% of the recommended daily allowance (nrv).if you are already taking one of our high strength multi’s then you may already be covered since most of our multis contain vitamin k at levels ranging from 20µg (multi-guard balance®) to 75µg (premtis® multi-max complete® & multi-guard active®). osteoguard, ® our bone formula provides a relevant level (40µg) of this nutrient per 2 tablets., 100% nrv for vitamin knatural k 1/k 2 combination, high strength one-a-day formulasmall easy to swallow tablets, pharmaceutical gmp standardsuk made & tested