Beetroot juice may shield heart from coffee and cold shock

NCT ID NCT06602921

First seen Jun 26, 2026 ยท Last updated Jun 26, 2026

Summary

This completed study tested whether drinking beetroot juice (rich in nitrate) could reduce the strain on the heart and blood vessels caused by caffeine and cold exposure. Twenty-four healthy adults took beetroot powder, caffeine, and a cold foot bath while researchers measured blood pressure and artery function. The goal was to see if a simple dietary supplement could help the cardiovascular system handle everyday stressors better.

What this could mean

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

Active substance
beetroot juice (nitrate-rich)
What this could lead to
If it works, this could point toward a simple dietary supplement to protect the heart during everyday stressors like caffeine and cold.
What could go wrong
This is a small, early-stage study in healthy people, not patients. Results may not apply to those with heart conditions or be strong enough to change recommendations.

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

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for CAFFEINE 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.

Contacts and locations

Locations

  • Loughborough University

    Loughborough, LE11 3TU, United Kingdom

More trials for these conditions

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