The effects of supplementation with nitrate-rich beetroot juice on plasma nitrate, plasma nitrite, resting blood pressure and cognitive function in older adults

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

TCTR

Registry ID

TCTR20221208001

Enrollment

Registered

2022-12-08

Start date

2026-07-18

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

blood pressure heart rate vascular resistance mean arterial pressure cognitive functions plasma nitrate plasma nitrite blood pressure

Interventions

250 ml beet-root.,250 ml placebo.

Experimental Dietary Supplement,Placebo Comparator No treatment

beetroot,control

Eligibility

Sex/Gender

All

Age

50 Years to 80 Years

Inclusion criteria

Inclusion criteria: live in Bangkok, are aged between 50-80 years old, are healthy, have no underlying disease, have normal blood pressure, and have no history of allergy to beet-root juice.

Exclusion criteria

Exclusion criteria: have underlying diseases, athletes, or taking antihypertensive drugs

Design outcomes

Primary

Measure	Time frame
blood pressure baseline (before supplement), day 1, 14, 28 after supplement mmHg	—

Secondary

Measure	Time frame
heart rate baseline (before supplement), day 1, 14, 28 after supplement bpm ,Cognitive function baseline (before supplement), day 1, 14, 28 after supplement Corsi block tapering test ,plasma nitrate baseline (before supplement), day 1, 14, 28 after supplement High Performance Liquid Chromatography	—

Countries

Thailand

Contacts

Public ContactChaleeda Borompichaichartkul

Faculty of Science, Chulalongkorn University

Chaleeda.B@chula.ac.th0898556515

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026