Health

Limited daily eating window may help manage Type 1 diabetes, study finds

ScienceDaily reports that fasting for 16 hours daily improved glucose control without raising severe blood sugar risks.

Updated Sep 11, 2026 · 12:52 UTC1 reports

The short version

A University of Illinois Chicago pilot study followed 32 adults with Type 1 diabetes and obesity who consumed meals only between noon and 8 p.m. over six months.[ScienceDaily]
Participants using the eight-hour feeding window saw their average HbA1c levels decrease by roughly 0.5% without an increase in dangerous blood sugar spikes or drops.[ScienceDaily]
Researchers stressed that the preliminary results should not prompt dietary changes without consultation with healthcare providers.[ScienceDaily]

The University of Illinois Chicago evaluated the effects of an eight-hour eating window among 32 adults with Type 1 diabetes and obesity over six months.[ScienceDaily]
Participants adhering to time-restricted eating between noon and 8 p.m. saw HbA1c levels decline by approximately 0.5% on average.[ScienceDaily]
The time-restricted eating protocol did not produce an increase in dangerously high or dangerously low blood sugar levels.[ScienceDaily]
Lead investigator Krista Varady stated this trial is the first to test intermittent fasting in individuals diagnosed with Type 1 diabetes.[ScienceDaily]

Because the study served only as an initial step with a small cohort of 32 people, researchers caution that patients should not change eating routines without professional medical guidance.[ScienceDaily]

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