Number one. Stop taking multivitamins or at least don't take them every day. Go to your multivit bottle and look at it right now. If it contains over 2500 iu of vitamin A .....stop it now. Vitamin A interferes with the utilization of vitamin D. In a study of 38,000 people death rate was 2% higher in the multivitamin takers. Vitamin A can be toxic in high doses and thought, wrongly, to decrease infection rates. Now, if some one was to come out with a multivitamin that had the amounts of vitamin A and D switched they would indeed have a healthy product.
Two. If you take a prescribed vitamin D look at the label. If it says ergocalciferol or vitamin D2. Stop it completely. It is not a naturally occurring vitamin in the human body and actually increases death rate when compared to D3. The other name for D3 is cholecalciferol.
Got any time left over....try the first sentence. It will help!