膳食纤维对人体肠道菌群调节作用的研究

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中图分类号：TS201.3 文献标志码：A 文章编号：1674-0270（2025）34-0129-03

Study on the Regulatory Effect of Dietary Fiber onHumanGutMicrobiota

HUANG Suping (Henan Vocational College of Tuina,Luoyang 471ooo, China)

Abstract: Intestinal microbiotais the keyto understand human health,while dietary fiber,asthe main carbon source for microbialfermentation,aects theecological successionand functional expressionof microbialcommuniies.At present,the trendofrefined dietarystructurehas ledtoa generallack offiber intakeinthe human body,which has becomeahiddendriving force behind intestinal microbiotadisordersandmetabolicdiseases.Basedonthis,thisarticle analyzes the bidirectional regulatory mechanismbetweendietaryfiberand gut microbiota,as wellasthespecificefects of diffrent fiber characteristics on microbiota colonization and metabolism.Dietary fiber can exert precise prebiotic effects,selectively support major beneficial bacteria,regulate intestinal pH and repair physical barriers,via the production of short-chain faty acids during metabolism effectively curbing the growth of pathogenic bacteria.

Key Words: dietary fiber; gut microbiota; prebiotics; short-chain fatyacids; food safety; immunomodulation

人体肠道微生态系统作为宿主的第二基因组，在漫长的协同进化中确立了基于营养互作的共生稳态。（剩余4356字）