Several studies show that subjects given high levels of whole wheat at first excrete more calcium than they take in, but after several weeks on this diet, they reach a
balance and do not excrete excess calcium.11 However, no studies of this phenomenon have been carried
out over a long period; nor have researchers looked at whether human beings can adjust to the phytate - reducing effects of
other important minerals, such as iron, magnesium and
zinc.
Taking synthetic
zinc can be problematic because one can easily take too much, and
other trace minerals can become
out of
balance because they are not mixed with
zinc in a whole foods matrix.