Carbs last or first? study tests best pre-workout meal order for athletes

NCT ID NCT07503990

First seen Jun 27, 2026 ยท Last updated Jun 27, 2026

Summary

This study looked at whether eating carbohydrates at the end of a pre-exercise meal (instead of at the start) changes how the body burns fat and carbs during exercise and affects cycling performance. Eighteen healthy, trained male athletes ate a standard meal in two different orders on separate days, then did a cycling test. Researchers measured fat burning, blood sugar, and time-trial performance to see if meal order matters.

What this could mean

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

Active substance
meal pattern (carbohydrate-last vs carbohydrate-first)
What this could lead to
If it works, this could help athletes optimize their pre-exercise meal for better fat burning and performance.
What could go wrong
This is a small, early study in healthy male athletes only, so results may not apply to others. The effect on performance may be small or absent.

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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

  • Cidade do Futebol

    Lisbon, Oeiras, 1495-433, Portugal

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