Late-night eating increases weight gain, raised insulin, fasting glucose, cholesterol & triglycerides in small trial.
A small clinical trial finds that eating later in the day (12 pm to 11 pm) increased weight gain, raised insulin, fasting glucose, cholesterol, and triglyceride levels compared to eating earlier in the day (8 am to 7 pm).
In the small study, each of the nine healthy weight adults underwent each of the two conditions: daytime eating (three meals and two snacks between 8 a.m. and 7 p.m.) for eight weeks and delayed eating (the same three meals and two snacks eating from noon to 11 p.m.) for eight weeks after a 2-week washout period. This is a small trial and needs to be repeated but is in line with another study that showed when healthy adults eat meals that are identical for breakfast, lunch, or dinner, the postprandial glucose increase is lowest after breakfast and highest after dinner even though the meals were 100% identical.
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