Absorption and excretion of orally administered inositol hexaphosphate (IP(6) or phytate) in humans.

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Grases F, Simonet BM, Vucenik I, Prieto RM, Costa-Bauza A, March JG, Shamsuddin AM

Absorption and excretion of orally administered inositol hexaphosphate (IP(6) or phytate) in humans.

Biofactors. 2001;15(1):53-61.

PubMed ID
11673644 [ View in PubMed
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Abstract

A study of the pharmacokinetic profile (oral absorption and renal excretion) of inositol hexaphosphate or phytate (IP(6)) is presented. Seven healthy volunteers were following a IP(6) poor diet (IP(6)PD) in a first period, and on IP(6) normal diet (IP(6)ND) in a second one. When following the IP(6)PD they become deficient in IP(6), the basal levels found in plasma (0.07+/- 0.01 mg/L) being clearly lower than those found when IP(6)ND was consumed (0.26+/- 0.03 mg/L). During the restriction period the maximum concentration in plasma were obtained 4 h after the ingestion of a single dose of IP(6), observing almost the same renal excretion profiles for the three different commercial sources and doses. After the IP(6) restriction period, volunteers were on IP(6)ND, reaching normal plasma and urinary IP(6) values in 16 days. Thus, the normal plasma and urinary concentrations, can be obtained either by consumption of a IP(6)ND taking a long time or in a short period by IP(6) supplements.

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