Randomized controlled trial2024Industry fundedOpen access

Funded in part by Isagenix International LLC

Gut microbiome remodeling and metabolomic profile improves in response to protein pacing with intermittent fasting versus continuous caloric restriction

Mohr AE, Sweazea KL, Bowes DA, Jasbi P, Whisner CM, Sears DD, Krajmalnik-Brown R, Jin Y, Gu H, Klein-Seetharaman J, Arciero KM, Gumpricht E, Arciero PJ

Nature communications · 73 citations

Review labels

Author industry tiesIndustry funded

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Industry funded
University or hospital
Skidmore College
Company
Isagenix International LLC
Authors
At least one author declares a financial tie to industry

Based on 2 listed funder(s) and full-text disclosure statement.

Publication

Published
2024-05-28 · Nat Commun · vol. 15 · issue 1 · p. 4155
Publisher
Nature Portfolio
Cited
78 citations · more than 100% of similar papers · 17.5× the field average
Impact
Top 10% most cited in its field
References
118 works
Access
Open access (journal) · CC-BY
Research areas
Dietary Effects on Health · Gut microbiota and health · Diet and metabolism studies
Keywords
Intermittent fasting, Metabolomics, Overweight, Gut flora, Calorie restriction, Microbiome, Weight loss, Feces, Internal medicine, Dysbiosis, Calorie, Caloric theory, Obesity, Randomized controlled trial, Physiology, Weight management, Medicine, Biology, Bioinformatics, Immunology, Microbiology
MeSH
feces, humans, obesity, weight loss, dietary proteins, caloric restriction, fasting, body composition, adult, middle aged, female, male, metabolomics, metabolome, gastrointestinal microbiome, intermittent fasting

13 authors

From US

  • Alex E. MohrArizona State University
  • Karen L. SweazeaArizona State University
  • Devin A. BowesArizona State University
  • Paniz JasbiArizona State University
  • Corrie Marie WhisnerArizona State University
  • Dorothy D. SearsArizona State University

Abstract

The gut microbiome (GM) modulates body weight/composition and gastrointestinal functioning; therefore, approaches targeting resident gut microbes have attracted considerable interest. Intermittent fasting (IF) and protein pacing (P) regimens are effective in facilitating weight loss (WL) and enhancing body composition. However, the interrelationships between IF- and P-induced WL and the GM are unknown. The current randomized controlled study describes distinct fecal microbial and plasma metabolomic signatures between combined IF-P (n = 21) versus a heart-healthy, calorie-restricted (CR, n = 20) diet matched for overall energy intake in free-living human participants (women = 27; men = 14) with overweight/obesity for 8 weeks. Gut symptomatology improves and abundance of Christensenellaceae microbes and circulating cytokines and amino acid metabolites favoring fat oxidation increase with IF-P (p < 0.05), whereas metabolites associated with a longevity-related metabolic pathway increase with CR (p < 0.05). Differences indicate GM and metabolomic factors play a role in WL maintenance and body composition. This novel work provides insight into the GM and metabolomic profile of participants following an IF-P or CR diet and highlights important differences in microbial assembly associated with WL and body composition responsiveness. These data may inform future GM-focused precision nutrition recommendations using larger sample sizes of longer duration. Trial registration, March 6, 2020 (ClinicalTrials.gov as NCT04327141), based on a previous randomized intervention trial.

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

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