@minijohn @marlow2, along with your calcium and D, you need K2. It works with D to keep the calcium out of your arteries and going into your bones. It has two forms MK-4 and MK7 associated with bone growth. I personally take 180 mcg of MK7 and shoot for 45 grams of MK4 daily. You also
Need magnesium at a ratio of 2:1 cal/mag ratio. And don’t take these together. They compete for absorption.