The Effects of Time-Restricted Eating on Metabolism and Gut Microbiota: A Real-Life Study
2022
Ilario Ferrocino | Marianna Pellegrini | Chiara D’Eusebio | Ilaria Goitre | Valentina Ponzo | Maurizio Fadda | Rosalba Rosato | Giulio Mengozzi | Guglielmo Beccuti | Fabio Dario Merlo | Farnaz Rahimi | Isabella Comazzi | Luca Cocolin | Ezio Ghigo | Simona Bo
The metabolic benefits of time-restricted eating (TRE) in humans are statistically significant but not clinically relevant. Few data are available about the effects of TRE on the gut microbiota. We compared the effects of a TRE regimen (<12 h feeding; n = 25) with a time-unrestricted (TUE) regimen (>12 h feeding; n = 24), on the clinical and dietary variables and gut-microbiota composition in patients with obesity, who were subjected for 12 weeks to the same caloric restriction. Median weight loss was 4.0 kg and 2.2 kg in the TRE and TUE groups, respectively, with a between-group borderline difference (p = 0.049). No significant between-group difference was found in other dietary, anthropometric, or laboratory variables. There were no substantial between-group differences in alpha and beta diversity or gut-microbiota composition. The TRE group showed a significant increase in the frequency of Lachnospiraceae, Parasutterella, and Romboutsia at the study’s end. A TRE regimen induced small changes both in metabolic/dietary variables and in the gut-microbiota composition, with respect to the TUE. The microbial changes we have found were of uncertain clinical significance.
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