Time-Restricted eating: a simple diet hack to reverse prediabetes?

NCT ID NCT04057339

First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time

Summary

This trial tests whether time-restricted eating (TRE) — limiting all food intake to an 8-10 hour daily window — can improve blood sugar control and metabolic health in people with metabolic syndrome or prediabetes. Participants are randomly assigned to either standard nutritional counseling alone or counseling plus a 12-week TRE schedule. The study measures changes in blood sugar, insulin resistance, cholesterol, and body composition to see if this eating pattern helps regulate the body's daily metabolic rhythms.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
a behavioral intervention called time-restricted eating, where participants limit their daily food intake to an 8-10 hour window
What this could lead to
If it works, this could point toward a simple, drug-free way to improve blood sugar control and reduce metabolic syndrome risk.
What could go wrong
This is a relatively small, early-stage trial. The benefits may be modest, and sticking to a strict eating window can be challenging for many people.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Altman Clinical and Translational Research Institute

    La Jolla, California, 92093, United States

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