Obesity

Time-Restricted Eating Without Calorie Counting for Weight Loss in a Racially Diverse Population : A Randomized Controlled Trial

Ann Intern MedPublished Randomised controlled trial

Authors' conclusion

Time-restricted eating is more effective in producing weight loss when compared with control but not more effective than CR in a racially diverse population.

Study context

Population
Adults with obesity, University of Illinois Chicago, January 2021 to September 2022; mean age 40 years, 33% Black, 46% Hispanic77 completed
Participants
90 adults
Comparison
8-hour time-restricted eating (TRE) vs CR vs control
Primary endpoint
Change in body weight
Follow-up
Month 12
Methodological details12-month, not blinded
  • 12-month
  • Not blinded

Primary result

As reported in the abstract

Weight loss
Difference, kg (95% CI)P value
TREvs Control−4.87% [CI, −7.61% to −2.13%]
−4.61(−7.37 to −1.85)
P ≤ 0.01
CRvs Control−5.30% [CI, −9.06% to −1.54%]
−5.42(−9.13 to −1.71)
P ≤ 0.01
Between TRE and CR0.43% [CI, −3.48% to 4.34%]
0.81(−3.07 to 4.69)
P = 0.68

Further findings

Mean, kcal/d

OutcomeTRECR
Reduction in energy intake · month 12−425 (SD 531)−405 (SD 712)

Original publication

Time-Restricted Eating Without Calorie Counting for Weight Loss in a Racially Diverse Population : A Randomized Controlled Trial. Ann Intern Med. Published 27 June 2023. doi:10.7326/m23-0052

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