Effect of wheat fiber on blood lipids, fecal steroid excretion and serum iron

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Abstract
Adding 36 g of wheat fiber for 3 weeks to the metabolically controlled diets of six subjects produced a significant increase in daily fecal weight from 70.8 g ± 6.2 SEM to 217 g ± 12.1; serum iron also fell by 21 μg/100 ml ± 2.1 SEM (P < 0.001) during the added fiber period (measured in five subjects) as did mean corpuscular volume and mean corpuscular hemoglobin. Fecal neutral steroid concentration (measured in four subjects) fell from 31 to 17.3 mg/g dry weight (P < 0.05) but the change in neutral steroid output and in acid steroid concentration and output was not significant. No change was seen in the serum levels of cholesterol and triglyceride.