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Trial design: Evaluating the safety, feasibility, and acceptability of time-restricted eating in pregnant women with obesity
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DOI：10.1016/j.cct.2026.108257.png)
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Abstract
En 中文
Background: In the United States (U.S.), approximately 15% of women of reproductive age have a body mass index (BMI) of at least 35.0 kg/m2, which is associated with increased risks of adverse maternal and fetal health outcomes. However, interventions targeting gestational weight gain have not improved perinatal health outcomes among this population, suggesting the need for innovation. Time-restricted eating (TRE) is an accessible eating pattern in which individuals consume food within a limited time frame each day. We hypothesize that TRE has the potential to optimize gestational weight gain and improve maternal cardiometabolic health and perinatal health outcomes among women with prenatal obesity. Methods: We describe a randomized controlled pilot study of TRE among pregnant women with a pre-pregnancy BMI between 35 and 60 kg/m2. The study aims to enroll 60 participants. The study commences at 14 to <= 20 weeks gestational age and continues through labor and delivery. The TRE intervention includes an 8-h eating window (10 a.m. - 6 p.m. or 11 a.m. - 7 p.m.) during the 2nd trimester and a 10-h eating window (9 a.m. - 7 p.m. or 10 a.m. - 8 p.m.) during the 3rd trimester, for each day of the participants' enrollment in the study. Results: The study will: 1) examine the safety, feasibility, and acceptability of TRE during pregnancy, 2) explore the impact of TRE on maternal body weight and cardiometabolic markers, and 3) explore the impact of TRE on perinatal health outcomes. Conclusion: The primary outcomes of this study are focused on examining the safety, feasibility, and acceptability of TRE in pregnant women with class II and III obesity.
Keywords:
Intermittent fasting
Obesity
Pregnancy
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