Hidden heart helper: Nitrate-Fortified biscuits could lower blood pressure

NCT ID NCT07172425

Recruiting now Knowledge-focused Sponsor: Queen Mary University of London Source: ClinicalTrials.gov ↗

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

Summary

This study tests whether adding a safe amount of nitrate—a natural compound found in leafy greens and beetroot—to common oat-based foods like biscuits, cereal bars, and porridge can improve nitric oxide levels and lower blood pressure. Thirty healthy adults will try each fortified food in a random order, and researchers will measure nitrate levels in their blood, saliva, and urine over 24 hours. The goal is to find an affordable, tasty way to support heart health for everyone.

What this could mean

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

Active substance: inorganic potassium nitrate added to oat-based foods (biscuits, cereal bars, porridge)
What this could lead to: If successful, this could point toward a simple, low-cost way to add heart-healthy nitrate to common foods, potentially helping manage blood pressure in populations that cannot afford expensive supplements.
What could go wrong: This is a very early, small study in only 30 healthy volunteers. It tests short-term effects, not long-term benefits or real-world use. The results may not apply to people with high blood pressure or other health conditions.

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As listed by the trial registrant

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

HEALTHY VOLUNTEERS NITRIC OXIDE VASCULAR FUNCTION

Contacts and locations

Locations

The William Harvey Research Institute, Centre for Cardiovascular Medicines and Devices, Queen Mary University of London
RECRUITING

London, EC1M 6BQ, United Kingdom

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