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Related Experiment Video

Updated: Jul 7, 2026

Extracellular Glucose Depletion as an Indirect Measure of Glucose Uptake in Cells and Tissues Ex Vivo

Extracellular Glucose Depletion as an Indirect Measure of Glucose Uptake in Cells and Tissues Ex Vivo

Published on: April 6, 2022

Caloric availability of polydextrose.

Michael H Auerbach¹, Stuart A S Craig, John F Howlett

¹Danisco USA Inc., Elmsford, New York 10523, USA. michael.auerbach@danisco.com

Nutrition Reviews

|February 2, 2008

Summary

This summary is machine-generated.

Polydextrose, a soluble fiber, is poorly digested and has a caloric value of approximately 1 kcal/g. This finding is based on energy balance and isotope-label disposition studies in humans and animals.

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Area of Science:

Food Science
Nutritional Science
Biochemistry

Background:

Polydextrose is a widely used bulking agent and soluble fiber in food products.
It is characterized by random glucose linkages, resisting mammalian digestive enzymes.

Purpose of the Study:

To determine the caloric availability of polydextrose.
To investigate its digestion and absorption in the gastrointestinal tract.

Main Methods:

Review of 14 energy balance and isotope-label disposition studies.
Analysis of data from animal and human trials.

Main Results:

Polydextrose is minimally absorbed in the small intestine.
It is partially fermented in the large intestine, producing volatile fatty acids.
Approximately 50% of ingested polydextrose is excreted undigested.

Conclusions:

Polydextrose exhibits a low caloric value of approximately 1 kcal/g.
Its digestive resistance is comparable to other soluble fiber ingredients.