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Calcium Bioavailability of Vegetarian Diets in Rats: Potential Application in a Bioregenerative Life‐Support System
Author(s) -
NICKEL KWANGOK P.,
NIELSEN S. SUZANNE,
SMART DEBRA J.,
MITCHELL CARY A.,
BELURY MARTHA A.
Publication year - 1997
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1997.tb04445.x
Subject(s) - bioavailability , calcium , chemistry , absorption (acoustics) , calcium metabolism , food science , zoology , biology , pharmacology , physics , acoustics , organic chemistry
ABSTRACT Calcium bioavailability of vegetarian diets containing various proportions of candidate crops for a controlled ecological life‐support system (CELSS) was determined by femur 45 Ca uptake. Three vegetarian diets and a control diet were labeled extrinsically with 45 Ca and fed to 5‐wk old male rats. A fifth group of rats fed an unlabeled control diet received an intraperitoneal (IP) injection of 45 Ca. There was no significant difference in mean calcium absorption of vegetarian diets (90.80 ± 5.23%) and control diet (87.85 ± 5.25%) when calculated as the percent of an IP dose. The amounts of phytate, oxalate, and dietary fiber in the diets did not affect calcium absorption.