IP6 is misunderstood?

Is there a study for this?

Outside of the +1hr where free iron and free calcium will be chelated by IP6 is there an actually study that shows absorption of minerals is impeded past this timeframe?

From: http://www.riceplex.com/ip6.html
NOTE:  [J Trace Element Med Biology15:221-8, 2001]

IP6 is misunderstood

Unfortunately dietitians have been taught that IP6 is an anti-nutrient, that because of its mineral chelating properties it deprives the body of essential nutrients. Dietitians often fail to distinguish growing children, who have high calcium and iron needs, from adults who begin to accumulate excessive minerals with advancing age. Females experience delayed accumulation of iron because of monthly menstruation and avoid calcium overload by donating this mineral to their offspring during pregnancy and lactation.

While nutritionists have been taught that IP6 in whole grains and seeds suppress the bioavailability of minerals, when IP6 was added to the diet of mice it did not affect their absorption of iron or calcium. [Journal Nutrition 114: 1192-98, 1984; Journal Nutrition 111: 841-47, 1981] Another study concluded that IP6 has no negative effects on mineral status and that adequate amounts in the diet are “remarkable and must be favorably considered.” [J Trace Element Med Biology15:221-8, 2001]