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First trial on adherence to time-restricted eating during pregnancy shows practicality in the second and third trimesters, but no improvements in glycemic or cardiometabolic outcomes for those at risk of gestational diabetes.
According to a recent trial published in ‘Scientific Reports’, a 5-week time-restricted eating intervention was viable for pregnant individuals, with participants averaging just under 10 hours of daily eating. Nevertheless, no noteworthy benefits were observed for glycemic control or metabolic outcomes.
Time-restricted eating is a nutritional strategy that limits the daily time available for energy intake. This randomized controlled trial by Hanna M S Skarstad et al. aimed to investigate not only adherence to a time-restricted eating intervention but also its possible effects on glycemic control and other cardiometabolic outcomes.
Pregnant women were assigned to either a time-restricted eating group, with a maximum daily eating window of 10 hours, or a usual-care control group. Throughout the trial, participants underwent 2-hour oral glucose tolerance tests and body composition assessments before and after the intervention. Continuous monitoring of interstitial glucose levels provided additional insights, while adherence rates and hunger levels recorded daily helped to evaluate the impact of the intervention.
Of the 32 participants, 30 completed the trial, demonstrating a notable commitment to the time-restricted eating protocol. A decrease in the daily eating window from an average of 12.3 hours to 9.9 hours was noticed in the time-restricted eating group. However, despite this adherence, the study found no substantial improvements in glycemic measures, blood pressure, or body composition than the control group.
Interestingly, while time-restricted eating participants reported increased hunger levels in the evening, the hunger levels in the morning remained unaffected. Additionally, dietary intake showed only minor adjustments.
Scientific Reports
A randomized feasibility trial of time-restricted eating during pregnancy in people with increased risk of gestational diabetes
Hanna M S Skarstad et al.
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