DEAR DR. ROACH: I’m a 68-year-old female who is in good health. I currently take vitamin D3. The only prescription that I’m on is rosuvastatin. It has been brought to my attention by my cousin, who is a devout vegan, that taking vitamin D3 with K2 is much better than just taking D3 alone. If thi s is true, I’m wondering why my doctor hasn’t recommended it. ...read more read less