Coffee, gum, or pill? study tests which caffeine form burns the most fat while cycling

NCT ID NCT07402902

ENROLLING_BY_INVITATION Knowledge-focused Sponsor: Universidad Rey Juan Carlos Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether the way you take caffeine—capsule, coffee, chewing gum, or mouth rinse—changes how much fat you burn during an hour of cycling. Ten healthy adults who exercise regularly will try each form and a placebo in random order. Researchers will measure fat oxidation, heart rate, and perceived effort to see which method works best.

What this could mean

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

Active substance: caffeine
What this could lead to: If successful, this could help athletes and fitness enthusiasts choose the best caffeine form to boost fat burning during exercise.
What could go wrong: This is a very small, early-stage trial with only 10 participants, so results may not apply to everyone. Caffeine can cause side effects like jitters or upset stomach.

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

As listed by the trial registrant

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

CAFFEINE CYCLING ERGOGENICS EXERCISE FAT METABOLISM

Contacts and locations

Locations

Estadio Raúl González Blanco, Camino del Molino 5

Fuenlabrada, Madrid, 28942, Spain

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