Synthetic Fibers

Resistant dextrins, such as soluble corn fiber, and polydextrose are synthetically produced, non-viscous soluble fibers derived through controlled enzymatic and thermal processes.
Resistant dextrins are obtained by rearranging starch molecules (typically from corn or wheat) through partial hydrolysis, while polydextrose is produced by polymerizing glucose under heat and vacuum in the presence of sorbitol and citric acid. These structural modifications result in fibers that resist digestion in the small intestine and reach the colon for partial fermentation.

While they differ from naturally derived plant fibers in origin and structure, both fibers are used in functional nutrition to increase fiber content.