Why all of a Sudden is Everyone Deficient in Vitamin D?

I saw this title and immediately wanted to find out what it said.  I had noticed this change where people were taking mega doses of vitamin D and it was even prescribed by their medical doctor.   I then checked Dr. Oz’s take on it and he said “Most people are deficient in this crucial cancer-fighting vitamin. Find out how this supplement superstar helps to prevent 3 different types of cancer.”

Funny, talking about a vitamin as a preventative.   Perhaps, we should just build good health and not worry about “disease” and what we should take to try and ward it off.

Then I listened to Dr. Berg’s video which  explained how vitamin D worked and what relationship it had with other vitamins.   It is very much worth the time to understand this.

You can find it here Vitamin D