The effects of sugar-beet fibre and wheat bran on iron and zinc absorption in rats

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The addition of 1 g sugar-beet fibre (Beta Fibre) to 3 g semi-synthetic diet resulted in a 54% increase in iron and a 39% increase in zinc absorption in rats. The same amount of non-starch polysaccharides fed as wheat bran (1.9 g) had no effect on Fe absorption but reduced Zn absorption by 9%. The inhibitory effect of wheat brain is probably due to its high phytate content, but there is, as yet, no explanation for the enhancement of Fe and Zn absorption caused by Beta Fibre. If the effect also occurs in man, it will have important implications for high-fibre diets and mineral nutrition.
Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalBritish Journal of Nutrition
Issue number2
Publication statusPublished - Sep 1990


  • Animals
  • Dietary Fiber
  • Intestinal Absorption
  • Iron
  • Iron Radioisotopes
  • Male
  • Phytic Acid
  • Polysaccharides
  • Rats
  • Rats, Inbred Strains
  • Triticum
  • Zinc

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