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Examining the potential prebiotic effect of almonds.

Maha Tahiri^1,2, Jack A Gilbert^3,4,5

¹Nutrition Sustainability Strategies, St Petersburg, FL 33702, United States.

Journal of Applied Microbiology

|March 29, 2025

Summary

Almonds act as a prebiotic food, promoting beneficial gut bacteria and producing short-chain fatty acids. This supports gut health and may improve cardiovascular health.

Keywords:

almonds cardiometabolic benefits dietary fiber functional foods gastrointestinal health gut microbiome metabolomics polyphenols prebiotics short-chain fatty acids

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Area of Science:

Nutritional Science
Microbiome Research
Functional Foods

Background:

Almonds are nutrient-dense, containing fiber, polyphenols, and unsaturated fatty acids.
Prebiotics selectively stimulate beneficial gut microbiota, improving health.
Almonds show potential as a functional food with prebiotic properties.

Purpose of the Study:

To review and synthesize evidence on the prebiotic effects of almond consumption.
To elucidate how almonds impact gut microbiota composition and function.
To explore the link between almond consumption and overall health, including cardiovascular benefits.

Main Methods:

Systematic review of in vitro studies, clinical trials, and existing reviews.
Analysis of changes in gut microbiota diversity and composition.
Assessment of short-chain fatty acid (SCFA) production.

Main Results:

Almond consumption increases beneficial bacteria (e.g., Bifidobacterium, Roseburia).
Almonds promote the production of beneficial SCFAs like butyrate.
Polyphenols in almonds contribute to antioxidant and antimicrobial effects, supporting the microbiome.

Conclusions:

Almonds demonstrate potential as a prebiotic food, positively influencing gut microbiota.
Almond consumption may contribute to improved gut barrier integrity and inflammation modulation.
Further research with standardized methods is needed to optimize and confirm cardiovascular health benefits.