title: Effect of lupines, a protein-rich legume, on iron absorption.
abstract: The absorption of iron from lupines, a protein-rich legume, was assessed in 35 parous Indian women. Iron bioavailability was shown to be as low for lupines as soybeans (geometric mean absorptions 0.9 and 1.7 per cent respectively, P less than 0.005). The addition of 30 mg of ascorbic acid moderately improved the geometric mean iron absorption from 1.0 to 5.3 per cent (P less than 0.0001), and 60 mg ascorbic acid from 0.7 to 6.9 per cent (P less than 0.0001). The phytate and polyphenol content of lupines was negligible. The demonstration of poor iron bioavailability from a legume of otherwise rich nutritional potential has important implications in nutritional planning programmes for developing countries.
authors.affiliation: Department of Medicine, University of the Witwatersrand, Johannesburg, South Africa.
authors.forename: B J
authors.initials: BJ
authors.lastname: Macfarlane
authors.forename: R D
authors.initials: RD
authors.lastname: Baynes
authors.forename: T H
authors.initials: TH
authors.lastname: Bothwell
authors.forename: U
authors.initials: U
authors.lastname: Schmidt
authors.forename: F
authors.initials: F
authors.lastname: Mayet
authors.forename: B M
authors.initials: BM
authors.lastname: Friedman
mesh_terms: D004044:Dietary Proteins; D007887:Fabaceae / Q000009:adverse effects*; D005260:Female; D005419:Flavonoids; D006801:Humans; D007194:India; D007408:Intestinal Absorption; D007501:Iron / Q000493:pharmacokinetics*; D010636:Phenols / Q000009:adverse effects; D010946:Plants, Medicinal; D011108:Polymers / Q000009:adverse effects; D059808:Polyphenols; D013025:Glycine max / Q000009:adverse effects
chemical_list: D004044:Dietary Proteins; D005419:Flavonoids; D010636:Phenols; D011108:Polymers; D059808:Polyphenols; D007501:Iron