NCT05810974

The Impact of Inorganic Nitrate-rich Beetroot Juice on Microvascular Blood Flow and Cognitive Function

The Impact of Inorganic Nitrate-rich Beetroot Juice on Microvascular Blood Flow, Cognitive Function and Other Hemodynamic Outcomes in Postmenopausal Women

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: University of Reading · Academic / Other
• Sex: Female
• Age: 45 Years
• Healthy volunteers: Accepted

Summary

Cardiovascular disease (CVD) is one of the leading causes of mortality worldwide. Inorganic nitrate found in beetroot and green leafy vegetables has been demonstrated to reduce cardiovascular disease risk factors including reducing blood pressure and the stiffness of blood vessels by increasing levels of a compound called nitric oxide. Much of the research to date has focused on the large blood vessels, and little is known about the impact of inorganic nitrate on smaller blood vessels which could be related to cognitive function. The majority of beneficial effects with inorganic nitrate have been observed within young healthy populations. However, it is known that after the menopause women are at an increased risk of cardiovascular disease and have reduced levels of nitric oxide in their body; this could also contribute to the cognitive decline also observed post-menopause. This trial will investigate the impact of inorganic nitrate from beetroot juice on the blood flow in small blood vessels and on cognitive function in postmenopausal women. The hypothesis of the study is that the nitrate in beetroot juice will increase circulating nitric oxide that will then increase blood flow in small blood vessels and improve cognitive function.

Conditions

• Post Menopausal

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Concentrated beetroot juice	Subjects will consume 70ml shot (Beet-it Sport nitrate 400 shot, James White Drinks) and this drink contains 0.4g inorganic nitrate
DIETARY_SUPPLEMENT	Nitrate depleted beetroot juice + potassium nitrate (KNO3)	Nitrate-depleted beetroot juice (70ml) and 0.4g KNO3- will be mixed. (Same appearance and taste with Beet-it sport shot)
DIETARY_SUPPLEMENT	Nitrate depleted beetroot juice	Subjects will consume 70ml of (Beet-it Placebo shot, James White Drinks). This drink is the same as the Beet-it Sport nitrate shot but has the nitrate removed.

Timeline

• Start date: 2023-03-14
• Primary completion: 2023-07-07
• Completion: 2023-08-07
• First posted: 2023-04-13
• Last updated: 2024-11-22

Locations

1 site across 1 country: United Kingdom