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TABLE 3 Characteristics of Various Dietary Fiber Definitions ^a

Reference	Nondigestible Animal CHOs b	CHOs Not Recovered by Alcohol Precipitation c	Nondigestible Mono- and Disaccharides
Australia New Zealand Food Authority (ANZFA) (Proposed), 2000	Yes	Yes	No
Institute of Medicine (Proposed), 2001
Dietary Fiber	No	Yes	No
Added Fiber	Yes	Yes	Yes

^a All definitions are assumed to include nonstarch polysaccharides.
^b CHO = carbohydrate.
^c Includes inulin, oligosaccharides (3–10 degrees of polymerization), fructans, polydextrose, methylcellulose, resistant maltodextrins and other related compounds.

The issue of including special mono- and disaccharides as dietary fiber has not been resolved. Methodological differentiation of digestible and nondigestible mono- and disaccharides will be cumbersome and complex to accomplish. Furthermore, these materials physiologically act as classic osmotically active agents in the gut, much in the same way that sugar alcohols do, and this response has not previously been considered a mechanism of action for dietary fiber.

Front Matter (R1-R10)

I. Overview and Charge to the Panel (1-2)

II. Definitions of Dietary Fiber (3-11)

III. Issues in Defining Dietary Fiber (12-21)

IV. Proposed Definition of Dietary Fiber (22-25)

V. Impact of the Definitions of Dietary Fiber and Unresolved Issues (26-33)

VI. References (34-42)

Appendix A: Acknowledgments (43-44)

Appendix B: Glossary (45-48)

Appendix C: Development and Evolution of Methods Used to Purify and Measure Dietary Fiber (49-62)

Appendix D: Determination of Energy Values for Fibers (63-64)