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Updated: May 2, 2026
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Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
Published on: February 15, 2019
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Seasonal variation in human gut microbiome composition
Emily R Davenport1, Orna Mizrahi-Man1, Katelyn Michelini1
1Department of Human Genetics, University of Chicago, Chicago, Illinois, United States of America.
Plos One
|March 13, 2014
Summary
Seasonal dietary changes significantly alter human gut microbiome composition, impacting bacterial taxa and diversity. This highlights the gut microbiome's adaptability to environmental and dietary fluctuations.
Area of Science:
- Microbiology
- Human Ecology
- Nutritional Science
Background:
- The human gut microbiome is influenced by environmental factors, with diet being a key determinant.
- Understanding how dietary fluctuations impact microbiome variation between individuals remains limited.
Purpose of the Study:
- To investigate seasonal variations in gut microbiome composition over one year.
- To assess the influence of dietary shifts, particularly produce availability, on microbiome stability and diversity.
Main Methods:
- Studied 60 individuals from a founder population (Hutterites) with a stable, communal lifestyle.
- Analyzed gut microbiome composition across seasons (winter vs. summer).
- Examined changes in specific bacterial taxa abundance and overall microbiome diversity.
Main Results:
- Observed significant population-wide shifts in gut microbiome composition between seasons.
- Found seasonal differences in the abundance of major phyla like Bacteroidetes and Firmicutes.
- Detected significant changes in overall gut microbiome diversity (Shannon diversity).
Conclusions:
- The human gut microbiome exhibits plasticity in response to seasonal dietary variations.
- Seasonal availability of produce, rich in complex carbohydrates, likely drives microbiome shifts.
- Findings underscore the dynamic relationship between diet and gut microbial ecology.
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