Diet and feeding pattern affect the diurnal dynamics of the gut microbiome.
Level 5 - mechanism / opinion, no new human data
Preclinical laboratory research examining diurnal microbiome dynamics under feeding patterns (non-human experimental model).
PubMed 25470548 · doi:10.1016/j.cmet.2014.11.008
What was done
The authors evaluated the diurnal compositional dynamics of the gut microbiome across daily feeding and fasting cycles. They assessed the impact of diet-induced obesity on these cyclical rhythms and tested whether time-restricted feeding (TRF) consolidated to the nocturnal phase restores microbial fluctuations.
What was found
The gut microbiome displayed daily cyclical fluctuations in composition. Diet-induced obesity dampened feeding/fasting cycles and diminished these cyclical shifts. Time-restricted feeding partially restored the diurnal fluctuations and altered bacteria associated with host metabolism. The abstract reports no numerical values, effect sizes, or statistical metrics.
Why it matters
This work identifies feeding patterns and diurnal rhythms as drivers of gut microbiota dynamics, demonstrating that harvest timing and meal schedules are essential variables when evaluating microbiome contributions to metabolic disease.
Limits
No sample sizes, quantitative measurements, or specific microbial taxa are reported in the abstract. The research is preclinical/animal-based and cannot be directly extrapolated to clinical human outcomes without direct human trials.
Cited by
- supports Continuous consumption of a high-fat diet in mice reduces gut microbiome diversity, but an isocaloric 9- to 10-hour time-restricted feeding pattern restores depleted microbial species.