A couple of short but sweet points to ponder...
Years ago the congress passed something called an "act of congress". This is simply an agreement that all in attendance agree. What they said was that the majority of our farm land in this country is depleted of all the needed minerals to produce a good vegetable. This was signed in 1932!  Now we have GMO vegies, further complicating the scene. The bottom line is that we need to take supplements in order to insure that we are getting all the nutrients our bodies require to be healthy and fight off disease. 
Why these vitamins? Because another study ( i like to read) said that with most over the counter vitamins you are lucky to have 15% of whats on the label actually get into your bloodstream. That makes most of what you see at the health food store, target, and cosco, a total waist of money. They call it expensive pee. The supplements you find here are all tested to the same standards as pharmaceuticals and for maximum absorption. Very high standards in order to ensure that you get what you are asking for. 
Until next time,
   
Dr. David Eckerson 
The Doctors Vitamin Program