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What effect
does IP6 have on mineral
bioavailability?
None. In the 1950s and 60s, there were some reports that
people in Egypt and Iran who eat unleavened bread have
deficiency of zinc, magnesium, etc. Since IP6 [then known
as phytic acid] is rich in unleavened bread, the misconception
was that IP6 caused such deficiency. Adding to this was
the demonstration that in the test tube inositol hexaphosphoric
acid binds with calcium, magnesium, zinc or any other cation
to form salt, helping propagate this notion. But IP6 in
nature [in bread or cereals] or as dietary supplement,
is the form of calcium-magnesium salt. Thus, not only is
there no possibility of IP6 causing deficiency of these
minerals, but if anything, it provides us with them. And,
beginning the late 1980s, studies with pure salts of IP6 by different scientists have demonstrated beyond reasonable
doubt that there is no appreciable change in the mineral
status, thereby completely refuting such fallacy.
Finally,
even if there was any such deficiency, for example of zinc
that causes an alteration in taste sensation, it could
be easily corrected by supplementation; for it is a miniscule
issue compared to the risk of cancer, heart disease, kidney
stone, diabetes etc.
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