Serum lipid and fecal bile acid changes with cereal, vegetable, and sugar-beet fiber feeding

Johanna W. Lampe, Joanne L. Slavin, Kim S. Baglien, William O. Thompson, William C. Duane, James H. Zavoral

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Thirty-four subjects consumed six controlled formula diets for 3 wk each, supplemented with 0 g added fiber, 10 and 30 g dietary fiber as wheat bran (WB), 10 and 30 g dietary fiber as mixed vegetable fiber (VF), and 30 g dietary fiber as sugar-beet fiber (SBF). Serum cholesterol changes for fiber free, 10 g WB, 30 g WB, 10 g VF, 30 g VF, and 30 g SBF (-0.13, -0.18 -0.005, -0.17, -0.24, and -0.70 mmol/L, respectively) were significant for 30 g VF and 30 g SBF. Reduction in total cholesterol with SBF was largely due to significant lowering of low-density-lipoprotein cholesterol. Total fecal bile acid concentrations were significantly higher with the fiber-free diet than with 30 g WB, VF, and SBF (P < 0.001) and were also higher with 30 g SBF than with 30 g WB and 30 g VF (P < 0.005). Daily fecal bile acid excretion was not different on 30 g SBF compared with 30 g WB and 30 g VF. Differences in cholesterol reduction across the diets could not be explained by differences in fecal bile acid excretion.

Original languageEnglish (US)
Pages (from-to)1235-1241
Number of pages7
JournalAmerican Journal of Clinical Nutrition
Volume53
Issue number5
DOIs
StatePublished - May 1991

Keywords

  • Bile acids
  • Cholesterol
  • Dietary fiber

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