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Le soja diminue l’absorption du fer

31/10/2015 | Etudes Compléments alimentaires et Etudes Perte de poids et Etudes Anti-âge

 

Pas forcement une bonne nouvelle pour les femmes mais ça peut l’être pour les hommes qui mangent beaucoup de viandes rouges

The Effect of Plant Proteins Derived from Cereals and Legumes on Heme Iron Absorption

Nutrients 2015, 7(11), 8977-8986;      Valerie Weinborn

The aim of this study is to determine the effect of proteins from cereals and legumes on heme iron (Fe) absorption. The absorption of heme Fe without its native globin was measured. Thirty adult females participated in two experimental studies (15 per study). Study I focused on the effects of cereal proteins (zein, gliadin and glutelin) and study II on the effects of legume proteins (soy, pea and lentil) on heme Fe absorption. When heme was given alone (as a control), study I and II yielded 6.2% and 11.0% heme absorption (p > 0.05). In study I, heme Fe absorption was 7.2%, 7.5% and 5.9% when zein, gliadin and glutelin were added, respectively. From this, it was concluded that cereal proteins did not affect heme Fe absorption. In study II, heme Fe absorption was 7.3%, 8.1% and 9.1% with the addition of soy, pea and lentil proteins, respectively.

Only soy proteins decreased heme Fe absorption (p

< 0.05). These results suggest that with the exception of soy proteins, which decreased absorption, proteins derived from cereals and legumes do not affect heme Fe absorption.

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