Am I taking too much vitamin D3? Dr. Sears recommends 2000 IU daily. I am taking two 5000 IU gelcaps. Is it better to take half at noon and half at night, or is taking two together wasteful?

We see the higher the dose, the better, with vitamin D3, particularly as you get so little sunshine exposure on your skin. Taking it in divided doses will help support the body for a longer period during the day, so that would be advantageous. But there is no harm in taking it all at once.