The science on vitamin D has been pouring in over the past few years. If you want to preserve your cardiovascular health the last thing in the world you should do is run low on vitamin D. Better yet, you should optimize your vitamin D level to at least 50 ng/mL (125 nmol/L).

The paltry minimum daily requirement of 400 IU vitamin D is clearly not enough. Scientists are recommending 4000 IU to 8000 IU of vitamin D per day to get levels into an optimal range.

I have written extensively on the subject of vitamin D and cardiovascular health in the past few years.