Gene test could tell you if caffeine boosts your workout

NCT ID NCT06610123

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether a person's genes (specifically the CYP1A2 gene) change how caffeine affects their strength training over 8 weeks. 48 healthy, active adults took either caffeine or a placebo before each workout. Researchers measured things like lifting speed, power, and muscle changes to see if genetics play a role.

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 personalize caffeine use for better strength training results based on a person's genetics.
What could go wrong
This is a small, completed study (48 people) looking at a specific gene. Results may not apply to everyone or lead to clear recommendations.

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

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Facultad de Medicina y Ciencias de la Salud. Universidad de Alcalá

    Alcalá de Henares, Madrid, 28805, Spain

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