You also need magnesium and k2
It helps your body absorb it .
American diet is very low on both and that is why we have so much metabolic and heart disease .
Our diets used to be high in magnesium when we grew our own green in our back yards . Most greens are grown by hydroponics now and they are very low .
Magnesium level never gets checked on standard blood test (doctors have to specifically order it and they almost never do )
https://www.naturalvitality.com/products-naturalcalm-raspberrylemon
Drink a glass of water mixed with it everyday along with D3
Keeps the plumbing moving too.