PHYTIC ACID INTAKE AND ITS EFFECT ON THE BIOAVAILABILITY OF ZINC IN PRESCHOOL CHILDREN
- VernacularTitle:学前儿童膳食植酸摄入量及对锌生物利用率的影响
- Author:
Sian LEI
;
Shengjie LIU
- Publication Type:Journal Article
- Keywords:
phytic acid zinc bioavailability
- From:
Acta Nutrimenta Sinica
1956;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Phytic acid intake of preschool children was measured with modified ion exchange method. Zinc bioavailability was assessed by metabolic balance experiment and phytic acid/zinc molar ratio was calculated.The average intake of phytic acid in the diet was 499mg/day. The average of phytic acid/zinc molar ratio was 6.66. Even the subjects ingested foods rich in phytic acid, the phytic acid/zinc molar ratio (10.6) still remained at the lower limit of the critical value (10-20), that will inhibit zinc bioavailability. Metabolic balance study indicated that zinc bioavailability was not inhibited.Therefore, the phytic acid in present Chinese diet is unlikely a factor of zinc deficiency among children.
