<<Disclaimer: Verify this information before applying it to your situation.>>

Many of the vitamin and mineral supplements make a big point that they meet 
100% of the "Daily Value", which has gone by various names over the years 
such as MDR (Minimum Daily Requirement).  The definition of this is the 
minimum amount required to avoid overt symptoms of deficiency where all 
nutrients are in appropriate balance, no stress is placed on the organism, 
and bioavailability of the supplement is excellent.

This is not a definition of optimum intake.

In our case I would add a concern about being able to absorb the nutrient.

Many of the supplements in the lists that have appeared here in the past 
year have been aimed more at an optimum instead of a minimum.

I am fortunate that I had a long career as an animal nutritionist working at 
optimizing nutrition for various species, and so I decided I should practice 
what I preached.  I felt a difference when I changed from a minimum daily 
value pill to one aimed more at an optimum level of nutrients.

Roger Weiss 

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