Cited by 8Probiotics and Fermented FoodsGut microbiota and healthGastrointestinal motility and disorders

Probiotics: mechanism of action and gastrointestinal health: gut guardians: unlocking the power of probiotics

Rana, Anita, Smriti·2026·Journal of the Science of Food and Agriculture

Abstract

The gut microbiota is fundamental to human health, contributing to nutrient metabolism, immune regulation and protection against pathogens. Disturbances in this microbial community, often caused by antibiotic use, poor diet or infections, can disrupt intestinal homeostasis and predispose individuals to gastrointestinal disorders. Restoring this balance has become a major therapeutic goal, with probiotics emerging as one of the most widely studied interventions. Probiotics exert their beneficial effects through multiple mechanisms, including strengthening the intestinal barrier, adhering to mucosal surfaces to prevent pathogen colonization, competing for nutrients and receptor sites, producing antimicrobial substances, and modulating host immune responses. By acting at the interface of the host and its microbiota, probiotics can influence both local gut function and systemic health outcomes. Clinical studies have demonstrated the potential of probiotics in managing gastrointestinal conditions such as antibiotic‐associated diarrhea, Helicobacter pylori infection, acute gastroenteritis, necrotizing enterocolitis, irritable bowel syndrome and AIDS‐associated diarrhea. Evidence suggests that therapeutic benefits are strain specific, underscoring the importance of precise strain selection for targeted outcomes. However, variability in host microbiota composition contributes to inconsistent clinical results and safety concerns remain for vulnerable populations such as immunocompromised patients. Future research must address these challenges through large scale, well controlled trials that clarify strain dependent mechanisms and establish standardized recommendations. Advances in microbiome science also highlight the potential of next generation probiotics such as Faecalibacterium prausnitzii and Akkermansia muciniphila , which may extend benefits beyond conventional strains. In conclusion, probiotics represent a promising adjunct to conventional therapies for gastrointestinal disorders. With further progress in standardization and safety validation, they may become reliable and personalized tools for promoting gut and overall health. © 2025 Society of Chemical Industry.

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Crossref · 10.1002/jsfa.70275

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Authors
Rana, A., & Smriti
Affiliations
Chandigarh University (IN)
Corresponding author
Rana, Anita
Venue
Journal of the Science of Food and Agriculture
Publisher
Wiley
Published
2025-10-25
Volume
106
Issue
7
Pages
3938-3951
ISSN
  • 0022-5142 (ISSN-L)
  • 1097-0010
OpenAlex
W4415539041
Cited by
7
References
106
Citations by year
2026: 7
FWCI
0.57
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the Science of Food and Agriculture (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
probiotics, gut microbiota, intestinal barrier, immunomodulation, antibiotic-associated diarrhea, Helicobacter pylori infection, necrotizing enterocolitis, irritable bowel syndrome, strain specificity, Faecalibacterium prausnitzii, Akkermansia muciniphila, probiotic safety, immunocompromised patients, dysbiosis
MeSH terms
Gastrointestinal Microbiome, Animals, Bacteria, Gastrointestinal Diseases, Humans, Probiotics, Gastrointestinal Tract

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