Pulse Brain · Growing Health Evidence Index
Tier 2 — RCT / large cohortPeer-reviewed

Diet intervention and microbial richness

Cotillard, A. et al.

2013

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Summary

This study, published in Nature as part of a paired set with the companion MetaHIT-linked analysis, examined the relationship between gut microbiota gene richness and metabolic health in a cohort of overweight and obese French adults undergoing a structured dietary intervention. Participants with low baseline gut microbial gene richness showed more adverse metabolic profiles and lower responsiveness to dietary change. The findings suggest that gut microbiota diversity may act as a modifier of dietary response, with implications for personalised nutrition strategies.

UK applicability

Although conducted in France, the findings are broadly applicable to UK public health and clinical nutrition contexts, particularly given shared Western dietary patterns and comparable rates of obesity and metabolic syndrome; the results are relevant to UK research into the gut microbiome as a mediator of diet-related disease risk.

Key measures

Gut microbial gene richness (metagenomic sequencing); body weight; metabolic markers (blood glucose, insulin, triglycerides, inflammatory markers); enterotype composition

Outcomes reported

The study measured changes in gut microbial gene richness and microbial community composition in overweight and obese individuals following a calorie-restricted dietary intervention. It reported associations between low microbial gene richness at baseline and adverse metabolic markers, and assessed whether diet could partially restore microbial diversity.

Theme
Nutrition & health
Subject
Gut microbiome & dietary health
Study type
Research
Study design
RCT
Source type
Peer-reviewed study
Status
Published
Geography
France
System type
Human clinical
Catalogue ID
XL0410

Topic tags

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