Gene test could reveal if caffeine boosts your gym performance

NCT ID NCT06610110

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

Summary

This study looked at how a gene called CYP1A2 affects the way caffeine influences strength and power during weightlifting. Sixty healthy, active adults took either caffeine or a placebo before exercise. Researchers measured things like bar speed, power output, and how many reps they could do. The goal was to see if genetic differences explain why some people get a bigger boost from caffeine than others.

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 workout performance based on a person's genetics.

What could go wrong

This is a small, completed study focused on acute effects, not a treatment. Results may not apply to everyone or lead to practical changes.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for CYP1A2 POLYMORPHISM are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

As listed by the trial registrant

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

More trials for these conditions

Other studies related to the condition(s) this trial covers.

Contacts and locations

Locations

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

    Alcalá de Henares, Madrid, 28805, Spain

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

    Alcalá de Henares, Madrid, Spain