Diet and fasting show promise for long COVID relief

NCT ID NCT06214455

Completed Symptom relief Sponsor: Pacific Northwest University of Health Sciences Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether a low-sugar diet, eating only during a 8-12 hour window each day, and periodic water fasts could reduce Long COVID symptoms. 77 adults with at least five Long COVID symptoms participated. The goal was to see if these dietary changes could lower symptom severity and number.

What this could mean

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

Active substance: dietary intervention (low-sugar diet, time-restricted eating, and periodic water fasting)
What this could lead to: If it works, this could point toward a simple, drug-free way to ease Long COVID symptoms through diet changes.
What could go wrong: This is a small, completed study with no control group, so results may not be widely applicable. Dietary changes can be hard to maintain and may not help everyone.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

COVID-19 Fasting long COVID-19

As listed by the trial registrant

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

LONG COVID LONG COVID19

Contacts and locations

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Locations

Pacific Northwest University

Yakima, Washington, 98901, United States
Remote trial - anyone residing in the United States

Boulder, Colorado, 80303, United States

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