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Time-Restricted Eating and Energy Restriction Improve Body Composition in Adults

Strategic Insights

— 1 min read

Researchers at Zhejiang Normal University examined the effects of time-restricted eating (TRE) alone and in combination with energy restriction (ER) on body composition in adults. The study, which included 20 randomized controlled trials with 1242 participants, found that TRE significantly decreased body weight, fat mass, fat-free mass, body mass index (BMI), and waist circumference. The findings suggest that TRE promotes weight loss in adults, and combining TRE with ER has no additional beneficial effects on weight loss.

Key Takeaways:

  • The study included 20 randomized controlled trials with 1242 participants, which is a significant sample size for this type of research.
  • TRE alone and in combination with ER resulted in decreased body weight, fat mass, fat-free mass, BMI, and waist circumference.
  • The subgroup analysis revealed that TRE alone compared to no restriction and TRE plus ER compared to ER resulted in significant decreases in body weight.
  • The meta-analysis showed that TRE independently promotes weight loss in adults, and combining TRE with ER has no additional beneficial effects on weight loss.
  • The study was registered with PROSPERO: CRD42022370215.
  • The research was published in the International Journal of Behavioral Nutrition and Physical Activity, a reputable journal in the field.
  • The study's findings have significant implications for the development of effective weight loss programs and strategies for adults.

Statistics:

  • 20 randomized controlled trials (1242 participants) were included in the systematic review and meta-analysis.
  • TRE significantly decreased body weight by 1.59 kg (95% CI: -2.02 to -1.15 p).
  • TRE significantly decreased fat mass by 2.32 kg (95% CI: -3.13 to -1.51 p).
  • TRE significantly decreased fat-free mass by 1.24 kg (95% CI: -1.86 to -0.63 p).
  • BMI and waist circumference were also significantly decreased with TRE.

Sources:

  • Efficiency of time-restricted eating and energy restriction on anthropometrics and body composition in adults: a systematic review and meta-analysis of randomized controlled trials. International Journal of Behavioral Nutrition and Physical Activity, 2025, 22(1):1-15.
  • doi-org.sdpl.idm.oclc.org/10.1186/s12966-025-01812-w
  • International Journal of Behavioral Nutrition and Physical Activity - http://www.ijbnpa.org/
  • Publisher: BMC.

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