Effect of the intake of a snack containing dietary fiber on postprandial glucose levels

Hyeon Ki Kim, Takuya Nanba, Mamiho Ozaki, Hanako Chijiki, Masaki Takahashi, Mayuko Fukazawa, Jin Okubo, Shigenobu Shibata

Research output: Contribution to journalArticlepeer-review

Abstract

To examine the effects of the intake of a snack containing dietary fiber under free-living conditions on postprandial glucose levels in older adults, nine healthy older adults aged 76.9 ± 1.6 years (mean ± standard error) completed two crossover trials: 1) regular snack (BISCUIT) intake and 2) intake of snacks with a high dietary fiber content (DF-BISCUIT). In both trials, each participant consumed either BISCUIT or DF-BISCUIT between lunch and dinner time for 1 week. During the intervention, the blood glucose levels of all the subjects were observed using a continuous glucose monitoring system. Lower 24 h blood glucose levels were yielded in the DF-BISCUIT than the BISCUIT trials. Moreover, compared to the BISCUIT trials, the blood glucose levels after dinner and areas under the curve (AUCs) were significantly decreased in the DF-BISCUIT treatments. The blood glucose levels and AUCs after the intake of the next day’s breakfast were suppressed in the DF-BISCUIT treatments compared to those in the BISCUIT trials. Our data indicate that the intake of snacks with a high dietary fiber content under free-living conditions is an effective way to restrain postprandial glucose levels and that the effect lasts until breakfast the next day.

Original languageEnglish
Article number1500
JournalFoods
Volume9
Issue number10
DOIs
Publication statusPublished - 2020 Oct 20

Keywords

  • Dietary fiber
  • Older adult
  • Postprandial glucose
  • Snack

ASJC Scopus subject areas

  • Food Science
  • Microbiology
  • Health(social science)
  • Health Professions (miscellaneous)
  • Plant Science

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