And they got the type of calcium right, but 1000 mg at a time means about half will be wasted. Among other problems.
And while we are all individual (which is one of the many problems with this product) I would be toxic for zinc on 3 scoops/day of this. I take only 50 mg 3 times/week because my zinc was too high on 4 times/week.
Just like panty hose, vitamins are not a one size fits all products. It is necessary for all of us to individualize our vitamin regimen, and there is no way to do this with any product that rolls everything into one pill or scoop.