"It's crucial that these vitamins be taken together because supplementing vitamin K with D helps the body use calcium properly to build bone instead of depositing it dangerously in arteries and soft tissue.Feb 20, 2018"

This is pretty widely accepted. Some D's include K but I take 10,000IU D and Life Extension Super K and it works out pretty well for me. I read several books on D and that is how I found out about K.

"It's crucial that these vitamins be taken together because supplementing vitamin K with D helps the body use calcium properly to build bone instead of depositing it dangerously in arteries and soft tissue.Feb 20, 2018"

This is pretty widely accepted. Some D's include K but I take 10,000IU D and Life Extension Super K and it works out pretty well for me. I red several books on D and that is how I found out about K.