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The Attenuating Effect of Soluble Fiber Consumption on Postprandial Glycemia in Humans

The Attenuating Effect of Soluble Fiber Consumption on Postprandial Glycemia in Humans

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05349916
Enrollment
24
Registered
2022-04-27
Start date
2021-12-07
Completion date
2022-03-09
Last updated
2022-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Sugar; High, Postprandial Hyperglycemia, Type2 Diabetes

Brief summary

The main objective of the current study is to investigate whether consumption of soluble fibers (isomaltodextrin \[IMD\], partially digestible maltodextrin) and RS4 starch will lower postprandial glycemia as well as postprandial insulin in human subjects with relatively high fasting blood glucose, when consumed with a specific amount of digestible carbohydrate (rice porridge). The primary outcome of the study is the effect of fibers on postprandial blood glucose, whereas the secondary outcome will be its effect on postprandial blood insulin.

Interventions

OTHERControl

300 g rice porridge + 150 ml drinking water

OTHERIsomaltodextrin Low Dose

300 g rice porridge + (5 g IMD in 150 ml drinking water)

OTHERIsomaltodextrin High Dose

300 g rice porridge + (10 g IMD in 150 ml drinking water)

OTHERGPC partially digestible maltodextrin

300 g rice porridge + (15 g GPC fiber in 150 ml drinking water)

300 g rice porridge + (15 g RS4 starch in 150 ml drinking water)

Sponsors

Grain processing corporation
CollaboratorUNKNOWN
Purdue University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
22 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Body mass index (18.5 kg/m² ≤ BMI ≤ 29.9 kg/m²) * No history of abnormal glucose metabolism * No ongoing use of drugs affecting blood glucose levels * Fasting blood glucose between 90-110 mg/dL * Low dietary fiber intake (less than 15 g per day)

Exclusion criteria

* Diabetic individuals * Individuals with history of gastrointestinal disease * Pregnant or nursing women

Design outcomes

Primary

MeasureTime frameDescription
Postprandial glycemic responseAcute study: [3 hours of measurement after consumption of test food]Blood glucose will be measured, (AUC)

Secondary

MeasureTime frameDescription
Postprandial insulin responseAcute study: [3 hours of measurement after consumption of test food]Blood insulin will be measured, (AUC)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026