Gut microbiota and circadian disruption in humans: Is there a rationale for metabolic disorders?

Jul 31, 2025Chronobiology international

Gut bacteria and disrupted daily rhythms in people: Possible links to metabolism problems

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Abstract

Circadian disruption is associated with metabolic disorders such as obesity and type 2 diabetes.

  • Circadian disruption can arise from behaviors like shift work and sleep deprivation.
  • The gut microbiome produces metabolites that influence nutrient absorption and metabolism in alignment with circadian rhythms.
  • Preclinical studies show that circadian disruptions change microbial composition, reduce rhythmicity, and impair functionality.
  • Human studies reveal inconsistent findings, suggesting that microbial functionality may be more sensitive to disruptions than microbial composition.
  • Eating patterns can influence both the gut microbiome and circadian alignment, indicating potential for realignment to support metabolic health.
  • Future research should utilize advanced methods to study the dynamic activity of the gut microbiome in response to circadian disruptors.

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