WeightControl.com Interview with:
Krista Varady, PhD
Professor, Kinesiology and Nutrition
University of Illinois, Chicago
WeightControl.com: What is the background for this study?
Response: Obesity is a major health issue. Many traditional weight loss diets involve counting calories, which can be cumbersome and difficult to do well. Time-restricted eating, without calorie counting, has become a popular weight loss strategy because it is simple to do. Whether it’s effective in producing weight loss, especially beyond the short term, is unclear.
WeightControl.com: What are the main findings?
Response: We studied 90 adults with obesity from the Greater Chicago area to determine whether intermittent fasting or calorie restricted eating would be more effective for weight control and cardiometabolic risk reduction. Participants were randomly assigned to 1 of 3 groups: 8-hour time-restricted eating (eating from noon to 8:00 p.m. only, without calorie counting); calorie restriction (reduce 25% of their calories daily), or no change in calorie consumption, with eating taking place over 10 hours or more throughout the day.
We found that participants who engaged in time-restricted eating ate 425 fewer calories per day than the control group and lost about 10 more pounds than the control group after one year. The calorie-restricted group ate 405 fewer calories per day and lost about 12 more pounds after one year. Participants showed high adherence to both interventions. We also found that participants who engaged in 8-hour time restricted eating had improved insulin sensitivity compared to those in the control group who ate their calories any time over 10 or more hours a day.
WeightControl.com: What should readers take away from your report?
Response: We believe the results of this study can help guide clinical decision-making partially by taking individual preferences into consideration, rather than just choosing a diet that may be more effective.
Response:
Citation: Shuhao Lin, Sofia Cienfuegos, Mark Ezpeleta, et al. Time-Restricted Eating Without Calorie Counting for Weight Loss in a Racially Diverse Population: A Randomized Controlled Trial. Ann Intern Med. [Epub 27 June 2023]. doi:10.7326/M23-0052
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Last Updated on June 27, 2023 by weightcontrol