If you are supplementing with Vitamin D you should also look into Vitamin K2. K2 helps D to absorb calcium into your bones (where you want it) and helps Vitamin A remove calcium from your veins (where you don't want it).
An interesting read: "Vitamin K2 and the Calcium Paradox" - https://www.amazon.com/gp/product/0062320041
An interesting read: "Vitamin K2 and the Calcium Paradox" - https://www.amazon.com/gp/product/0062320041