Prebiotics

Prebiotics provide health benefits by specifically altering the microorganisms within or on your body, most commonly in the digestive tract.

Looking for a way to put your body’s microorganisms to work in improving your health? Prebiotics are substances that act as food for the microorganisms in or on your body, benefitting your health. They’re scientifically defined as “substrates that are selectively utilized by host microorganisms conferring a health benefit.”

Some prebiotics are tested and shown to improve digestive function, support the body’s natural defences, improve mineral absorption or help regulate satiety and energy balance. While prebiotics can be found in foods such as onions, garlic, bananas, chicory root and Jerusalem artichokes, typically the prebiotics in these foods are found at low levels.

Prebiotics include many different types of substances, but the most studied prebiotics to date are specific types of fiber. But remember, not all dietary fibers are prebiotics. Different fibers may or may not meet the prebiotic criteria of being utilized by gut microbes to provide specific health benefits.

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More Resources on Prebiotics

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  • Checklist of Cumulative Required Evidence for a Prebiotic

  • Archive Highlight: Human milk oligosaccharides in the infant gut, with Dr. Simone Renwick PhD

  • Use of biotics in animals: impact on nutrition, health, and food production

  • Interactions of polyphenols in the gut, with Prof. Yves Desjardins PhD

  • New Frontiers in Female Reproductive Tract Microbiota and Biotic Interventions: Mini-symposium

  • 2024 in Review: Important Advances in Biotic and Microbiome Science

  • New ISAPP Expert Recommendation: Scientific Criteria for Classifying Prebiotics

  • Planning a Biotics Study? New Publication Recommends Adding Diet as a Variable

  • Fiber and short-chain fatty acids for cognitive health, with Dr. Boushra Dalile PhD

  • Design and reporting of prebiotic and probiotic clinical trials in the context of diet and the gut microbiome