Cohort study2021Open access

Remodeling of the gut microbiome during Ramadan-associated intermittent fasting

Su J, Wang Y, Zhang X, Ma M, Xie Z, Pan Q, Ma Z, Peppelenbosch MP

The American journal of clinical nutrition · 107 citations

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Government
Science and Technology Department of Gansu Province
University or hospital
“World-Class Universities and World-Class Disciplines” of Northwest Minzu University
University or hospital
Talent Training Project for Kunming University of Science and Technology
Government
Gansu Provincial Science and Technology Department
Government
Ministry of Science and Technology Assistance Project Grant
Government
Changjiang Scholars and Innovative Research Team in University
Grants
Science and Technology Department of Gansu Province (1504WKCA094); Science and Technology Department of Gansu Province (17YF1WA166)

Based on 6 listed funder(s) and full-text disclosure statement.

Publication

Published
2020-11-25 · Am J Clin Nutr · vol. 113 · issue 5 · pp. 1332–1342
Publisher
Elsevier BV
Cited
142 citations · more than 98% of similar papers · 7.3× the field average
Impact
Top 10% most cited in its field
References
42 works
Access
Open access (hybrid journal) · CC-BY
Research areas
Dietary Effects on Health · Gut microbiota and health · Genetics, Aging, and Longevity in Model Organisms
Keywords
Intermittent fasting, Lachnospiraceae, Microbiome, Feces, Internal medicine, Gut flora, Endocrinology, Physiology, Medicine, Biology, Immunology, Bioinformatics
MeSH
feces, humans, bacteria, butyric acid, fasting, cohort studies, islam, adolescent, adult, middle aged, male, young adult, biomarkers, gastrointestinal microbiome

8 authors

From CN, NL

  • Junhong SuKunming University of Science and Technology; Erasmus MC
  • Yueying Wang
  • Xiaofang ZhangKunming University of Science and Technology
  • Mingfu MaQinghai No.3 People's Hospital
  • Zhenrong XieKunming Medical University; First Affiliated Hospital of Kunming Medical University
  • Qiuwei PanErasmus MC

Abstract

Background

Intermittent fasting is a popular dietary intervention with perceived relatively easy compliance and is linked to various health benefits, including weight loss and improvement in blood glucose concentrations. The mechanistic explanations underlying the beneficial effects of intermittent fasting remain largely obscure but may involve alterations in the gut microbiota.

Objectives

We sought to establish the effects of 1 mo of intermittent fasting on the gut microbiome.

Methods

We took advantage of intermittent fasting being voluntarily observed during the Islamic faith-associated Ramadan and sampled feces and blood, as well as collected longitudinal physiologic data in 2 cohorts, sampled in 2 different years. The fecal microbiome was determined by 16S sequencing. Results were contrasted to age- and body weight-matched controls and correlated to physiologic parameters (e.g., body mass and calorie intake).

Results

We observed that Ramadan-associated intermittent fasting increased microbiome diversity and was specifically associated with upregulation of the Clostridiales order-derived Lachnospiraceae [no fasting 24.6 ± 13.67 compared with fasting 39.7 ± 15.9 in relative abundance (%); linear discriminant analysis = 4.9, P < 0.001 by linear discriminant analysis coupled with effect size measurements] and Ruminococcaceae [no fasting 13.4 ± 6.9 compared with fasting 23.2 ± 12.9 in relative abundance (%); linear discriminant analysis = 4.7, P < 0.001 by linear discriminant analysis coupled with effect size measurements] bacterial families. Microbiome composition returned to baseline upon cessation of intermittent feeding. Furthermore, changes in Lachnospiraceae concentrations mirrored intermittent fasting-provoked changes in physiologic parameters.

Conclusions

Intermittent fasting provokes substantial remodeling of the gut microbiome. The intermittent fasting-provoked upregulation of butyric acid-producing Lachnospiraceae provides an obvious possible mechanistic explanation for health effects associated with intermittent fasting.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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