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Impact of sugar beet pectin and polydextrose on fasting and postprandial glycemia and fasting concentrations of serum total and lipoprotein lipids in middle-aged subjects with abnormal glucose metabolism

Abstract

Objective:

To examine the effects of sugar beet pectin (SBP) and polydextrose (PDX) on fasting plasma glucose concentration, serum lipid profile and postprandial glycemia in middle-aged subjects with abnormal glucose metabolism.

Design:

A placebo-controlled, randomized, parallel double-blinded study.

Subjects and setting:

Subjects were recruited via newspaper announcements. Seventy subjects were recruited of which 66 completed the study.

Intervention:

The intervention period lasted for 12 weeks during which the subjects consumed a drink enriched with either SBP (n=22) or PDX (n=22) or without fiber enrichment (control group, n=22). The daily dose of the drinks was 4 dl. The subjects were also given nutrition counseling. Postprandial glycemia was examined in 24 subjects (n=8 in each group) at 0 and 12 weeks after a standardized breakfast.

Results:

Fasting plasma glucose concentration did not change in the SBP and PDX groups, whereas it increased in the control group (P=0.007). On the contrary, the glycosylated hemoglobin A1c increased marginally but significantly (P0.05) in the intervention groups without a change in the control group. In postprandial glycemia, no differences between the groups were found. In both the SBP and PDX groups, fasting serum High-density lipoprotein (HDL)-cholesterol concentration increased (P0.05) without a change in the control group. Total to HDL-cholesterol ratio decreased in all groups (P0.05).

Conclusions:

It was found that SBP and PDX do not have positive effects on fasting or postprandial plasma glucose concentrations or serum lipid profile in subjects with abnormal glucose metabolism.

Sponsorship:

Danisco Ltd, Espoo, Finland.

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Acknowledgements

We thank laboratory personnel, Ms Päivi Turunen, Mrs Kaija Kettunen, Mrs Eeva Lajunen and Mr Sebastiaan Bol for excellent technical assistance.

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Correspondence to U Schwab.

Additional information

Guarantors: U Schwab and M Uusitupa.

Contributors: US contributed to study plan, subject recruitment, data analysis and interpretation, and was the principal author of the manuscript.

AL was involved in subject recruitment, counseling of the subjects and data analysis. AT was involved in study plan, planning of the fiber drinks and data interpretation. MU contributed to study plan and data interpretation.

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Schwab, U., Louheranta, A., Törrönen, A. et al. Impact of sugar beet pectin and polydextrose on fasting and postprandial glycemia and fasting concentrations of serum total and lipoprotein lipids in middle-aged subjects with abnormal glucose metabolism. Eur J Clin Nutr 60, 1073–1080 (2006). https://doi.org/10.1038/sj.ejcn.1602421

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