I take vitamin D3 and Vitamin K2 together with a meal that contains fat. My hematologist had me take 4000 iu's of vitamin D3 when my bloodwork showed that I was low. I added the K2 after reading that it helps the D get to the bones and stay out of the other tissues and arteries. It is sometimes hard for me to find the K2 so I was pleased to find last week that NatureMade has a new soft gel that has both vitaminD3 and vitaminK2 in one soft gel. (D3 5000iu and K2 100mcg).

I may adjust this in the summer as I am out in the sun alot mowing, but during the winter months I am not outside much to get any D.