What to eat before exercise? study tests best meal for blood sugar control

NCT ID NCT07175740

Completed Knowledge-focused Sponsor: Paul Poirier Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 26, 2026 · Updated 2 times

Summary

This completed study looked at how different pre-exercise meals affect blood sugar after exercise in 15 men with type 2 diabetes. Participants tried five conditions: fasting, or meals with added sucrose, fructose, fat, or aspartame, each followed by one hour of cycling. The goal was to see which meal led to the biggest drop in blood sugar. Results could help guide better meal timing advice for people managing diabetes.

What this could mean

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

Active substance: standardized meals (sucrose, fructose, fat, aspartame, or fasting)
What this could lead to: If it shows clear patterns, this could help refine dietary advice for people with type 2 diabetes who exercise.
What could go wrong: This is a small, early-stage study (15 participants) that only looked at short-term blood sugar changes. Results may not apply to women, insulin users, or real-world settings.

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.

Motor Activity type 2 diabetes mellitus

As listed by the trial registrant

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

GLYCEMIC RESPONSE TYPE 2 DIABETES

Contacts and locations

Locations

Institut universitaire de cardiologie et de pneumologie de Québec - Université Laval

Québec, Quebec, G1V4G5, Canada

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