Research

Hormonal

Early Time-Restricted Feeding (eTRF), defined as consuming all calories within a 6-hour window (08:00–14:00) while matching total energy intake to a control group, significantly improves 24-hour glucose levels and reduces glycemic excursions in overweight adults.

To improve your blood sugar control without losing weight or counting calories, try eating all your meals between 8 AM and 2 PM. Keep your total calories and macronutrients the same as you normally would. This aligns your eating with your body's natural circadian rhythms, leading to lower average glucose levels and fewer spikes, even if you don't change what or how much you eat.

ModerateSupportsMEDIUM confidence
Relative to the control schedule, eTRF decreased mean 24-hour glucose levels by 4 ± 1 mg/dl (p = 0.0003) and glycemic excursions by 12 ± 3 mg/dl (p = 0.001).
Humaira Jamshed et al. · Nutrients · 2019

Why this rating

Small sample size (n=11) and short duration (4 days), though rigorous crossover design.

Source

Early Time-Restricted Feeding Improves 24-Hour Glucose Levels and Affects Markers of the Circadian Clock, Aging, and Autophagy in Humans

Humaira Jamshed et al. · Nutrients · 2019

DOI 10.3390/nu11061234

crossover · n=11Cited 639×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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