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Review

Soluble Dietary Fiber, One of the Most Important Nutrients for the Gut Microbiota

by 1,2,†, 1,† and 1,3,*
1
Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Department of Human Microbiome, School of Stomatology, Shandong University, Jinan 250012, China
2
School of Life Science, Qi Lu Normal University, Jinan 250200, China
3
State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Smaoui Slim
Molecules 2021, 26(22), 6802; https://doi.org/10.3390/molecules26226802
Received: 17 September 2021 / Revised: 30 October 2021 / Accepted: 2 November 2021 / Published: 11 November 2021
(This article belongs to the Special Issue Food Bioactive Compounds: Chemical Challenges and Opportunities)
Dietary fiber is a widely recognized nutrient for human health. Previous studies proved that dietary fiber has significant implications for gastrointestinal health by regulating the gut microbiota. Moreover, mechanistic research showed that the physiological functions of different dietary fibers depend to a great extent on their physicochemical characteristics, one of which is solubility. Compared with insoluble dietary fiber, soluble dietary fiber can be easily accessed and metabolized by fiber-degrading microorganisms in the intestine and produce a series of beneficial and functional metabolites. In this review, we outlined the structures, characteristics, and physiological functions of soluble dietary fibers as important nutrients. We particularly focused on the effects of soluble dietary fiber on human health via regulating the gut microbiota and reviewed their effects on dietary and clinical interventions. View Full-Text
Keywords: soluble dietary fiber; resistant oligosaccharide; viscous fiber; gut microbiota; human health soluble dietary fiber; resistant oligosaccharide; viscous fiber; gut microbiota; human health
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MDPI and ACS Style

Guan, Z.-W.; Yu, E.-Z.; Feng, Q. Soluble Dietary Fiber, One of the Most Important Nutrients for the Gut Microbiota. Molecules 2021, 26, 6802. https://doi.org/10.3390/molecules26226802

AMA Style

Guan Z-W, Yu E-Z, Feng Q. Soluble Dietary Fiber, One of the Most Important Nutrients for the Gut Microbiota. Molecules. 2021; 26(22):6802. https://doi.org/10.3390/molecules26226802

Chicago/Turabian Style

Guan, Zhi-Wei, En-Ze Yu, and Qiang Feng. 2021. "Soluble Dietary Fiber, One of the Most Important Nutrients for the Gut Microbiota" Molecules 26, no. 22: 6802. https://doi.org/10.3390/molecules26226802

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