Related Experiment Video
Updated: Aug 1, 2026

Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
Review article: prebiotics in the gastrointestinal tract
S Macfarlane1, G T Macfarlane, J H Cummings
1Dundee University Gut Group, Division of Pathology and Neuroscience, Ninewells Hospital and Medical School, Dundee, UK. s.macfarlane@dundee.ac.uk
Prebiotics, like oligofructose and galacto-oligosaccharides, can safely modify gut microbiota by increasing beneficial bacteria. While clinical evidence is emerging, they show potential for improving gut health and increasing calcium absorption.
Area of Science:
- Microbiology
- Nutrition Science
- Gastroenterology
Background:
- Prebiotics are short-chain carbohydrates that beneficially alter gut microbiota composition and metabolism.
- They are proposed as a safer, cheaper, and more accessible alternative to probiotics for improving health.
Purpose of the Study:
- To review existing literature on the effects of prebiotics on human gut function and overall health.
Main Methods:
- Searched the Science Citation Index using keywords related to prebiotics, gut microbiota, and various health conditions.
- Focused on human studies published in English; no relevant clinical studies or meta-analyses were found in the Cochrane Library.
Main Results:
- Oligofructose, galacto-oligosaccharides, and lactulose demonstrably increase beneficial bacteria like Bifidobacteria and Lactobacillus in the large bowel.
- While fermentation produces short-chain fatty acids and gas, effects on bowel habits are minimal.
- Animal studies suggest anti-inflammatory effects in inflammatory bowel disease and increased calcium absorption.
Conclusions:
- Prebiotics offer a promising, cost-effective, and safe strategy for modulating gut microbial balance.
- Further research is needed, but prebiotics hold potential for direct health benefits.
More Related Videos
Related Concept Videos
Bacterial Flora of the Large Intestine
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
Probiotics
Microbiota of the Stomach and Small Intestine
Functions of the Gut Microbiota
Dysbiosis of the Gut Microbiota
Microbiota Modulation by Antibiotics

