Longer-term effects of wild blueberry consumption on brain function in older men and women

Longer-term effects of wild blueberry consumption on brain function in older men and women - Wild blueberries and brain function

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON57048

Enrollment

Registered

2024-05-20

Start date

2024-11-19

Completion date

Unknown

Last updated

2026-03-16

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

Conditions

Insulin-resistance syndroom Metabolic syndrome Syndrome X Metabolic Syndrome

Interventions

Study participants will receive, in a random order, daily 26 g of freeze-dried wild blueberry powder (wild blueberry intervention) or a matched placebo (control intervention) for sixteen weeks, sepa

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: - Men and women, aged between 60-75 years - BMI between 25-35 kg/m2 (overweight or obese) - Fasting plasma glucose

Exclusion criteria

Exclusion criteria: - Allergy or intolerance to berries - Left-handedness - Current smoker, or smoking cessation

Design outcomes

Primary

Measure	Time frame
The primary endpoint is the difference at follow-up in the cerebral blood flow response before and after intranasal insulin administration between interventions.	—

Secondary

Measure	Time frame
Cognitive performance that will be assessed with a neuropsychological test battery is the secondary endpoint.	—

Countries

Netherlands

Contacts

Public ContactPJ Joris

Universiteit Maastricht

p.joris@maastrichtuniversity.nl0883887250

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Mar 20, 2026