Effect Of Time Restricted Eating On Body Weight And Fasting Glucose In Participants With Obesity Results Of A Randomized, Controlled, Virtual Clinical Trial

Researchers studied time-restricted eating (TRE), a dietary approach where you limit when you eat rather than what you eat. In this 8-week virtual clinical trial, 78 people with obesity were randomly assigned to either eat within a 10-hour window (14:10 group, fasting for 14 hours) or a 12-hour window (12:12 group, fasting for 12 hours). Both groups followed the same calorie-controlled diet and exercise program with weekly counseling support.

The results showed that both approaches led to significant weight loss, but the 14-hour fasting group performed slightly better. People in the 14:10 group lost an average of 8.5% of their body weight compared to 7.1% in the 12:12 group. More importantly for metabolic health, only the 14-hour fasting group showed significant improvements in fasting blood glucose levels, with an average decrease of 7.6 mg/dl. This improvement was even more pronounced in participants who started with elevated blood sugar levels.

The study suggests that extending your daily fasting period by just two extra hours may provide additional metabolic benefits beyond weight loss. The researchers believe this works by giving your body more time each day to enter a fasted state, which can improve how your body processes glucose and burns fat.

In clinical practice, this research supports time-restricted eating as a practical tool for weight management and blood sugar control, particularly the 14:10 approach for patients seeking optimal metabolic health benefits.