Also, be careful taking 5000 IU/day of Vitamin D. I did this for a few months and it was enough to send my blood levels over the top of the range, even in winter.

Too much Vitamin D is not good for you. The supplement fans have gone too far in recommending too high of dosages. My doctor said she’s seeing a lot of people with excessively high Vitamin D levels now that it has become popular.